The be quiet! Dark Rock series has been legendary for more than a decade at this point. This month, they are launching their best version yet, the new Dark Rock Pro 6 and the Dark Rock 6, featuring an all-new design to deliver as much cooling performance as possible.
The Dark Rock Pro 6 is aimed at heavily overclocked systems and demanding workstations. Compared to its predecessor, it features an optimised heatsink, seven heatpipes, two custom-designed Silent Wings fans, and an extended feature set that includes a hardware switch to toggle between performance and a semi-passive quiet modes. The custom Silent Wings fans offer different sizes, one 135mm one and one 120mm one, mounted on a height-adjustable rail system to avoid issues with RAM and motherboard VRM compatibility.
The standard Dark Rock 6 ships with just the 135mm Silent Wings fan and one less heatpipe, bringing the total count to six heatpipes. While it has one less fan, a smaller heatsink and one less heatpipe, the standard version of the cooler does still pack the hardware switch, allowing users to toggle between semi-passive and performance fan profiles.
Both the Dark Rock 6 and its Pro sibling will be available later this month, priced at £64.99 for the standard model and £79.99 for the Pro.
Cooler Master is expanding its AIO cooling lineup with the MasterLiquid Atmos II Stealth series, available in both 240mm and 360mm configurations. This new iteration strips away the flashy RGB lighting in favour of a clean, professional aesthetic that blends into modern minimalist builds.
The Atmos II Stealth series (via Vortez) brings several technical upgrades over previous models, most notably an increase in radiator thickness to 29mm (from 27mm), providing extra surface area to improve heat dissipation. Cooling is handled by Mobius 120P fans, which use loop dynamic bearings to deliver high static pressure while maintaining low noise levels. Under the hood, the ultra-low-profile pump features a dual-chamber design that optimises water flow. The pump's housing is constructed from heat-resistant PPS and fibreglass for long-term durability.
A unique feature of the Atmos II Stealth is its modularity via the Flex Kit System. The pump top features magnetic, interchangeable covers that allow users to swap the default look for metallic plates or an active VRM fan module. This optional VRM fan provides multidirectional airflow, which Cooler Master's testing suggests can reduce VRM temperatures by up to 10.2°C. Additionally, the cooler includes offset mounting brackets for Intel's LGA 1851 platform to ensure the cold plate is aligned with the thermal hotspots of the latest Core Ultra processors.
The MasterLiquid Atmos II Stealth Series is built for simplified installation, coming with pre-installed fans and a universal quick-mount system. Each unit is bundled with CryoFuze thermal paste and a suite of cable-management accessories. While official global pricing has not yet been detailed, the series is expected to roll out to major retailers starting later this month.
CPS PCCooler has launched the TR620M X, a relatively compact dual-tower air cooler with a single fan. However, that single fan can spin up to 5000RPM, faster than most other PC cooling fans on the market.
According to ITHome, the heatsink measures 115x106x94mm and uses a pure-copper, nickel-plated, reflow-soldered base. The same source states that the heatsink towers are treated with an anti-oxidation spray coating and utilise six 6mm heat pipes to transfer the thermal energy generated by the CPU.
Airflow is provided by a single fan (100x100x25) equipped with a Japanese NMB dual ball bearing. The fan operates at a maximum speed of 5000±10%RPM, delivering a maximum airflow of 105.42CFM and a static pressure of 11.85mmH2O. These figures, as you'd expect, come with a pretty high noise level, up to 45.66dB(A).
According to the official product description, the TR620M X supports a wide range of mainstream workstation platforms. Compatibility includes Intel LGA3647 (narrow type) and 4677, as well as AMD sTRX4, sWRX8, TR4, SP3, TR5, SP5, and SP6. The TR620M X is currently available in China for 439 yuan (£48), with an initial launch price of 339 yuan (£37). Availability outside the Chinese market has not yet been provided.
KitGuru says: For the general consumer, something like the PCCooler TR620M X cooler may be a bit too loud. However, if you don't mind the noise, it should offer a good amount of performance.
GAMEMAX SIGMA 620 WH is designed for users who want both strong cooling and a unique visual touch in their PC build. For a long time, I have personally preferred air cooling because it is simple, reliable, and requires very little maintenance. But in recent years, many liquid coolers have become more attractive because they include small displays that show system information or custom images. Now, GAMEMAX has brought this idea to air cooling with the SIGMA 620 WH, which makes it stand out from many traditional tower coolers.
What makes this cooler interesting is the 2.8-inch customizable LCD screen placed on the top. It can show real-time system information or even display custom images and videos, which adds personality to the setup. At the same time, it still focuses on strong cooling performance with six 6 mm heatpipes, dual 120 mm fans, and support for CPUs up to 245W TDP. This combination allows it to handle powerful processors while also improving the overall look of the PC build.
Unboxing
The SIGMA 620 comes in a clean white box with a simple design. On the front, there is a large image of the cooler. It shows the single tower heatsink, white fans, and the LCD screen on top. The GAMEMAX logo is on the left, while the product name SIGMA 620 is printed on the right. A few icons at the bottom highlight features like PWM support, LCD display, ARGB lighting, and 245W TDP support.
The back of the box shows the main features of the cooler. It explains the 2.8-inch customizable LCD screen, dual-fan single-tower design, and six heatpipes. Small images also show the cooler and its parts.
One side of the box lists the full specifications, including dimensions, fan speed, airflow, noise level, and CPU compatibility. The other side is simple and shows product information in multiple languages along with the official website.
After opening the box, the first thing you see is the user guide placed on top. Under it, the cooler and accessories are packed safely inside a thick foam container. The mounting accessories are stored in a separate small box.
Inside the installation kit, GAMEMAX provides all the required mounting parts for both Intel and AMD platforms.
Inside the box, the following parts are included:
Radiator (tower heatsink)
Forward fan 120mm (A12-B)
Reverse fan 120mm (A12-A)
Universal mounting bracket
Intel backplate (LGA1851 / LGA1700)
Intel spacers (LGA1851 / LGA1700) ×4
AMD spacers (AM4 / AM5) ×4
Intel screws ×4
AMD screws ×4
Buckle strips / fan clips ×4
Thermal paste ×1
Small scraper ×1
Overall, the accessories are well organised and provide everything needed for installation.
GAMEMAX Sigma 620 specifications
Specification
Details
Model
SIGMA 620 WH
Cooler Type
Single Tower Air Cooler
Dimensions
120 × 114.2 × 158.8 mm
TDP Support
Up to 245W
Heatsink Material
Aluminium Fins
Number of Fins
48
Heatpipes
6 × 6mm Heatpipes
Heat Base
Soldered Copper Base
Display
2.8-inch LCD Screen
Fan Size
120 × 120 × 25 mm
Fan Quantity
2 Fans
Fan Type
Positive Blade + Reverse Blade
Bearing Type
Rifle Bearing
Fan Speed
800 – 1800 RPM ±10%
Lighting
ARGB (Motherboard Sync Supported)
Connector
4-pin PWM, 3-pin ARGB
CPU Compatibility
Intel LGA1851 / 1700 / 1200 / 115X
AMD AM5 / AM4
A closer look
Heatsink
The Sigma 620 uses a single tower heatsink design. The cooler measures 120 × 114.2 × 158.8 mm and has a net weight of 154 g. It is available in black and white, and our review unit comes in white. The whole heatsink, including the heatpipes, is finished in full white, which gives it a very clean look.
The heatsink includes 48 aluminium fins. At the center, it uses 6 superconducting composite heatpipes, each with a 6 mm diameter. These heatpipes run through the tower and connect to the base. The sides of the heatsink fins use a raised design, which allows the fan clips to fit securely into the fins for mounting the fans.
The cooler also includes an anti-insect intrusion design. The bottom panel uses an extended design that helps seal the hardware rack holes.
On the top cover, there is a 2.8-inch LCD monitor. This screen sits neatly on the top of the heatsink and adds a modern touch to the cooler.
Fans
The cooler includes two 120 mm fans, each measuring 120 × 120 × 25 mm. The main fan uses a regular blade design, while the secondary fan uses a reverse blade design.
Both fans use rifle bearings. The fan frame colour is white, and each fan has 9 blades. Each fan also includes 28 ARGB LEDs.
Both fans run at 12 V rated voltage with a 5 V start-up voltage. The rated current is 0.22 A for the main fan and 0.2 A for the secondary fan. The rated power is 2.64 W and 2.4 W.
The fan speed ranges from 800 to 1800 RPM ±10%. Maximum airflow is 71.66 CFM for the main fan and 70.71 CFM for the secondary fan. Maximum static pressure is 2.54 mmH₂O and 2.1 mmH₂O. The maximum noise level is 35.5 dBA and 42 dBA.
Both fans have a rated life of 30,000 hours. The connector includes 3-pin AURA ARGB and 4-pin PWM. Each fan also has soft rubber pads on the corners to reduce vibration. A thin ARGB light strip runs along the side of the fan frame, which remains visible and glows in a style similar to infinity fans.
Installation
The installation process of the Sigma 620 is simple and easy to follow. The steps are clearly explained in the user guide, so even new users can install it without confusion. One good thing is that the heatsink can be installed without attaching the fans first, which makes handling and mounting much easier.
The mounting system feels secure once installed, and the cooler sits firmly on the CPU. The included brackets and accessories make the process smooth for both Intel and AMD platforms.
Clearance
When it comes to RAM clearance, the space is quite tight. As seen in the images, the cooler sits very close to the RAM slots, leaving limited room on that side. If you are using RAM with tall heatsinks, you may face compatibility issues. Low-profile RAM would be a better fit in this case.
On the other hand, the clearance on the opposite side is much better. There is enough space around the motherboard area, so it does not cause any issues with other components. You can raise the fan position slightly to get more RAM clearance. However, this comes with a small trade-off, as the fan may cover the RGB lighting, which affects the overall look. Overall, the installation is easy, but the RAM height should be considered before installing this cooler.
Software
The software for the Sigma 620 is very basic, but it gets the job done. The interface is simple and easy to understand, so you don’t need much time to get used to it.
Most of the software is focused on CPU temperature monitoring and screen themes. You can view real-time system data like CPU usage, temperature, and other basic stats directly on the LCD screen.
There are a few pre-built themes available, which you can apply easily. These include system info layouts and simple visual designs. You can also adjust settings like brightness and screen rotation.
One useful feature is that you can create your own custom theme. You can add your own images or simple layouts to personalise the display according to your setup.
Here are a few examples of themes displayed on the Sigma 620 cooler screen.
Testing and thermal performance
We tested the GAMEMAX SIGMA 620 in the GAMEMAX Leader 2 case using an Intel Core i7-12700K with the MSI MPG Z790 CARBON MAX WIFI II motherboard. The room temperature during testing was 28°C. At idle, the CPU stayed around 39°C with low fan speed. The fans remained quiet, and noise was barely noticeable.
Under load, we ran a CPU-Z stress test. The CPU reached around 185W, and temperatures went up to 72°C. The cooler handled this load well. Fan speed increased smoothly, and noise stayed at a comfortable level. There was no thermal throttling, and the system remained stable. For a heavier test, we used the AIDA64 single FPU stress test. In this test, the CPU again stayed in the 180–190W range, and temperatures reached 85°C. This is on the higher side but still within safe limits. The cooler maintained stable performance without any issues.
Overall, the Sigma 620 performs well for a high-performance air cooler. It handles heavy loads without stability problems. The claimed 245W TDP support also seems reasonable based on these results, as it can manage around 190W+ comfortably.
Final thoughts
The GAMEMAX SIGMA 620 WH offers a good balance between performance and design. It stands out by adding a customizable LCD screen, which is not common in air coolers. This gives it a unique touch while still keeping the reliability of traditional air cooling.
The build quality is clean and consistent. The full white finish, including the heatsink and heatpipes, looks neat inside the case. The ARGB lighting and top display add extra visual appeal without feeling too much. In terms of performance, the cooler handled the i7-12700K well. It managed around 190–200W loads while keeping temperatures in a safe range. Fan noise is also controlled, staying quiet at idle and reasonable under load.
The software is simple and basic, but it works fine. It mainly focuses on CPU temperature monitoring and screen themes. You can choose from a few built-in themes or even create your own custom theme, which adds a bit of personalisation.
There are a few things to consider. RAM clearance is tight, especially with taller memory modules. You can adjust the fan position for more space, but it may cover the RGB lighting. The GAMEMAX Sigma 620 WH delivers stable performance and adds a unique feature with its LCD screen. Based on its overall performance and usability, I would give it the EnosTech Performance Award.
ID-Cooling is continuing its aggressive expansion of the Frozn lineup with the launch of the Frozn A620 SLK. This new CPU air cooler introduces a “hybrid” architecture , integrating two “half-tower” fin stacks into a single 160mm-tall unit.
The primary innovation of the Frozen A620 SLK (via ITHome) is its heatsink design. Unlike most dual-tower coolers with two separate heatsink blocks, the Frozn A620 SLK has only one large heatsink with enough space to fit a 120x25mm fan in the middle. This embedded central fan and an external front fan are positioned in opposition to create high-velocity airflow through the fins. The central fan is the AM-120-K, a 120×25 unit capable of reaching 2500 RPM with a static pressure of 3.65 mmAq. This fan utilises a tool-less mounting system for easy maintenance. To ensure maximum RAM compatibility, ID-Cooling has paired this with the AF-120 SLIM (120×15) in the front, which provides 65.2 CFM of airflow despite its 15 mm low-profile frame.
Thermal transfer is handled by six 6mm heat pipes and a precision-machined copper base, enabling a nominal TDP of 260W. This puts the SLK in direct competition with many larger, bulkier dual-tower coolers that often interfere with high-profile memory modules or VRM heatsinks. The 160mm height ensures broad compatibility with standard mid-tower cases.
Compatibility is also a major highlight, as ID-Cooling is already looking ahead. In addition to current staples like Intel's LGA 1700/1851 and AMD's AM4/AM5, the Frozn A620 SLK officially supports the upcoming Intel FCLGA1954 socket. This inclusion suggests that the cooler is prepared for the next generation of Intel desktop processors.
KitGuru says: ID-Cooling was very creative with its fin stack geometry. By sandwiching a full-sized fan between two halves of a tower and slapping a slim fan on the front, they've essentially built a smaller dual-tower cooler that won't bully your RAM.
Sharkoon has introduced its new S100 ARGB all-in-one liquid cooler, built for users who want strong cooling and a stylish look in their PC. The cooler comes with a large 360 mm radiator and focuses on both performance and clean design.
The S100 ARGB is made for high-end systems. It can handle heavy workloads and gaming sessions without letting temperatures rise too much. With its large radiator, it helps move heat away from the CPU quickly, keeping the system stable even under pressure.
To support this, the cooler includes three 120 mm ARGB PWM fans. These fans can run between 500 and 2,000 RPM. This gives users the freedom to choose between quiet operation or stronger airflow, depending on their needs. The balance between noise and cooling can be adjusted easily.
One of the main highlights of the cooler is its pump design. It features an infinity mirror effect that creates a deep lighting look. Combined with ARGB lighting, it adds a modern touch to any PC build, especially those with glass panels.
Inside, the S100 ARGB uses a solid copper plate. This helps transfer heat from the CPU to the liquid more efficiently. The company also includes DOWSIL thermal paste in the box, which helps improve contact and keeps performance stable over time.
Sharkoon has also focused on making installation simple. The fans come with a modular design that helps reduce cable clutter. This makes the inside of the PC look clean and organised, which many users prefer.
The cooler is designed to work with most modern systems. It supports popular sockets, including Intel LGA 1700 and 1851, as well as AMD AM4 and AM5. The braided tubes also allow flexible placement inside different case sizes.
Along with performance, Sharkoon continues its effort towards eco-friendly packaging. The company is moving towards fully paper-based packaging for many of its products to reduce plastic waste.
Sharkoon S100 ARGB availability and price
The Sharkoon S100 ARGB is now available in black and white colours. It comes with a price of €119.90, making it a solid option for users looking for a reliable and stylish liquid cooling solution.
Sharkoon has expanded its AIO liquid‑cooler lineup with the S100 ARGB, a 360mm all‑in‑one unit designed for higher‑end gaming PCs and workstations. The cooler combines a large pump block with an infinity‑mirror lighting effect, three ARGB PWM fans and broad socket compatibility across Intel LGA1700/1851 and AMD AM4/AM5.
The S100 ARGB uses a 360mm radiator paired with three 120mm fans that operate between 500 and 2000 RPM. A copper cold plate handles heat transfer from the CPU, and Sharkoon includes DOWSIL thermal paste in the box. The pump housing features layered ARGB lighting for added visual flair.
Sharkoon has focused on ease of installation through modular fan cabling and textile‑braided tubing, which provides flexibility when routing the cooler in tighter cases. The fans can be daisy‑chained to reduce cable clutter, and the tubing is reinforced for durability.
The Sharkoon S100 ARGB AIO liquid cooler now sits above the previous S70, S80 and S90 AIO coolers in the line-up, available in both black and white colour options, priced at €119.90.
KitGuru Says: Are you currently pricing up a new PC build? How much are you looking to spend on your AIO CPU cooler?
Today we’re taking a look at the Antec Vortex View 360, a premium 360mm AIO cooler built around Asetek’s latest 9th-generation pump design, featuring an integrated 5-inch 360-degree rotatable IPS display. On paper, Antec is targeting both strong thermal performance and a high level of visual customisation with the Vortex View 360. In this review, we’ll be testing installation, build quality, acoustics and, of course, thermal performance to see how it compares against other 360mm AIOs.
Timestamps:
00:00 Intro
00:44 Pricing and key details
01:42 Closer look – radiator
03:29 CPU block + screen!
07:00 Tranquil fans
08:19 Other accessories
09:09 Installation process
10:30 Screen software
11:41 Acoustics and thermals
13:48 Closing thoughts
Features:
Huge 5-inch IPS display — Vortex View 360 is equipped with a 1280 x 720 IPS panel that can be oriented through 360 degrees to suit your build, perfect for monitoring real-time system stats or custom visuals that show through your chassis side panel.
9th-Gen Asetek cooling platform with quieter pump — engineered for up to ~400 W TDP cooling power with reduced vibration and optimised acoustics, pairing performance with lower noise.
Integrated iUnity 2.0 — Users can fine-tune fan and pump curves, customise lighting zones and control what the display shows, all through Antec’s updated iUnity 2.0 software.
Jonsbo is maintaining its rapid release pace with the debut of the TX-360 AIO liquid cooler. This new flagship cooling solution leans heavily into current aesthetic trends, featuring a high-resolution circular screen on the pump block and an elaborate LED lighting system across its triple-fan array. Following the same design language as Jonsbo's X, D, and BO series cases, the TX-360 offers deep customisation options for both performance monitoring and visuals.
The TX-360 features a 3.95-inch LCD integrated into the pump head. According to Cowcotland, the screen, with a resolution of 480 x 480 and a brightness of 450 nits, is managed via the Jonsbo-AIO software, allowing users to display real-time system metrics, custom images, videos, or clock widgets. In a clever bit of engineering, the screen assembly attaches magnetically to the water block using Pogo pins for data and power transmission. This modular design simplifies the mounting process and ensures a clean look without extra wires trailing from the pump head.
Unlike traditional AIOs with three separate fans, the TX-360 uses a unified triple-fan frame that houses three 120 mm fans. This design reduces cable clutter by using a single output cable with PWM and RGB headers. The lighting is notably complex, with the fan blades featuring centred rings and the frame itself providing an infinite mirror effect when viewed from the side. Performance-wise, the fans operate between 700 and 2,400 RPM, delivering 62.4 CFM of airflow and 2.46 mmH2O of static pressure. While effective, Jonsbo notes a peak noise level of 37.3 dB(A).
While many manufacturers are beginning to sunset support for legacy hardware, Jonsbo is taking a universal approach. The TX-360 includes mounting kits for a wide range of sockets, including AMD AM4 and AM5, as well as Intel 115x, 1200, 1700, and the latest LGA-1851 for Arrow Lake processors.
KitGuru says: Although pricing isn't known yet, Jonsbo usually doesn't stretch its prices too much. Still, considering the feature set and looks, it will likely cost more than an entry-level AIO cooler from well-known brands.
Phanteks has joined the trend of AIOs with big LCDs with the announcement of the 360M25-LCD AIO, a 360mm liquid cooler that stands out for its massive 6-inch high-resolution IPS LCD.
The built-in display boasts a 1480×720 resolution and a 60Hz refresh rate, making it one of the largest currently available on a pump block. Despite the screen's size, the unit was designed to maintain a 51mm clearance for tall RGB RAM modules, ensuring compatibility with most motherboards and memory kits.
A pure-copper cold plate handles the cooling alongside a 360mm radiator equipped with three new M25 Gen 2 D-RGB fans. These fans are designed for high airflow and low acoustic output, and use the Nexlinq daisy-chain system to minimise cable clutter by routing both power and lighting through a single connection. The hardware is fully compatible with modern sockets, including Intel LGA 1851 and AMD AM5.
On the software side, the Nexlinq App for Windows offers deep LCD customisation, allowing users to display clock speeds, temperatures, and media files without significant CPU overhead. The display logic operates directly at the hardware level to ensure that animations remain smooth even under the system's load. Available in both black and white finishes, the 360M25-LCD AIO is priced at £129.90/$149.99/€149.90.
KitGuru says: The 360M25-LCD AIO feels like a direct response to the big LCD offers that have flooded the industry in the last couple of years. The good thing is that it isn't as expensive as many of the others.
The most exciting part of reviewing PC hardware is looking at brand new products from a fresh new company. Levelplay debuted its cooling line at Computex 2024, so its products are very new to the market. Today we get our first look at one of the company's AIO coolers, the Combat Liquid 360 HUD, equipped with a 360mm radiator, RGB fans, and an LCD screen, or you could say… a Heads-Up Display!
Features:
Integrated 2.6″ circular display: Combat Liquid 360 HUD is equipped with a built-in HUD, providing real-time system info like CPU temperature, power draw, usage rate, and clock speeds directly on the pump cap mounted LCD.
Jet impingement pump technology: Levelplay AIOs use a high-velocity coolant flow pumped directly onto the cold plate to improve thermal transfer from the CPU.
Rigid All-in-one fan design: Three 120mm ARGB fans are encased in a unified frame design, pre-installed to the cooler for less cable clutter and maximum airflow.
Engineering designed to last: Durable metal brackets support installation on AMD and Intel desktop platforms while reinforced rubber tubing with braided sleeving allows for maximum flexibility, leak protection and a clean look.
Levelplay ships the Combat Liquid 360 HUD in a cardboard box with an image of the cooler and Combat logos on the front. On the back, some key features are listed with images. Inside the box, the contents are packed into a cardboard crate for protection during shipping. The cooler is wrapped in plastic, and the accessories are included separately in a smaller box.
The included fans are mounted in a single-frame design to reduce cable clutter and feature a PWM speed range of 800-2000 RPM. The opaque fan blades illuminate with ARGB lighting once the cooler is powered on, and a single cable connects from the centre, featuring standard 4-pin PWM and 3-pin ARGB connections.
The Combat 360 HUD uses a standard 27mm thick aluminium radiator with 12 waterways and a dense fin pitch with fixed position tubing at the radiator tank. The radiator is coated with a slightly textured, satin black finish that appears high-quality. The tubing is fitted with premium-looking braided sleeving.
For an LCD-equipped pump, the Levelplay Combat Liquid 360 HUD is a compact unit, with dimensions of 89 x 80 x 64 mm with the screen housing installed. The screen housing is attached to the pump body magnetically and can be easily removed and rotated so that the display can always be mounted in the correct orientation.
Tubing is flexible EPDM rubber connected to the CPU block on 90-degree rotary fittings. At the base of the CPU block, the cold plate is manufactured from micro-skived copper. Wiring to the pump is standard 4-pin PWM, and the LCD connects to the PC motherboard via a 9-pin USB header connection.
In terms of included accessories, all installation hardware for current AMD and Intel platforms is shipped with the cooler. There is also a small tube of thermal compound, as there isn't any pre-applied to the cold plate and a thermal paste spreading tool. A physical copy of the installation guide is included too, which I prefer to digital versions that seem to be more common these days.
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