DeepCool CL6600 Case Review: Hypersplit technology?

DeepCool has a solution to the problem where your CPU gets cooked by heat rising from your mighty 600W graphics card. That solution is named Hypersplit and it is the focus in our review of the DeepCool CL6600 PC case which comes complete with a 360mm AIO cooler.

Timestamps:

00:00 Start
00:55 Removing panels / AIO
05:11 Building a system inside the case
08:40 Noise, smoke and thermal testing
10:54 Leo’s Closing thoughts

Main features

• SPLIT FOR PERFECT FLOW: CL6600 keeps things cooler with a modular split-chamber layout. It places the radiator in its own zone, creating separate airflow paths for heat-generating components and letting the whole system run at its best.
• BALANCE IN LAYERS: A raised top chamber redefines the overall silhouette while keeping space organised. Vertical grille bars at the front provide natural ventilation and create visual rhythm, with real wood adding an organic finish to the clean, modern aesthetic
• Pre-installed 360mm ARGB Liquid Cooler: Advanced pump with adjustable speeds from 2500–3400 RPM, balancing high efficiency with quiet operation. Triple high-performance FDB fans on the radiator ensure steady, reliable airflow. DeepCool’s short-tube design keeps the main chamber neat and visually open.
• Includes 2x FL12R SE ARGB Fans: Dual reverse-blade fans at the bottom nest lower to pull in fresh air without crowding your build.

Specification:

• Motherboard support: ATX, Micro-ATX, Mini-ITX.
• Power supply support: ATX, SFX-L, SFX.
• Expansion slots: 7.
• Included fans: 2x FL12R SE ARGB 120mm intakes in floor.
• Fan mounts: 3x 120mm/2x 140mm front, 2x 120/140mm roof, 1x 120mm rear, 1x 120mm floor.
• Radiator mounts: 360mm/280mm front, 240mm/280mm roof, 120mm/140mm rear.
• 5.25-inch optical drive bays: None.
• Internal drive bays: 2x 3.5-inch/2.5-inch, 3x 2.5-inch.
• Front I/O ports: 1x USB 3.0 type-A, 1x USB 3.1 type-C, audio.
• Dimensions: 453mm H x 409mm D x 217mm W.

Testing

To put this case through its cooling paces we will be using a test system consisting of an AMD Ryzen 7 9850X3D, Palit RTX 5080 and an SSD. This system allows us to produce a substantial amount of heat and effectively test the DeepCool CL6600‘s cooling capabilities.

Test System:

• Processor: AMD Ryzen 7 9850X3D
• CPU Cooler: included DeepCool 360mm AIO
• Case fans: 3x DeepCool FT14
• Motherboard: MSI MAG X870E Tomahawk Max WiFi PZ
• Memory: Thermaltake ToughRAM XG D5 32GB DDR5-6000
• Graphics card: Palit GeForce RTX 5080 Gaming OC
• Power supply: DeepCool PN1200M 1200W Gold
• SSD: Crucial T700 M.2 NVMe
• OS: Windows 11

Cooling Performance

We can see the benefit of the separate Hypersplit chamber that houses the CPU cooler, but it is not all good news. The downside is that you get best results when you crank up the sped of the fans on the AIO cooler, which can get noisy. The benefit is that both the CPU and graphics card run at pleasingly low temperatures.

Closing Thoughts

We are familiar with the concept of a triple chamber case from our review of the Corsair Air 5400 which is an expensive case that works very well. By contrast the DeepCool CL6600 offers decent value for money and employs a simple design concept where the included AIO is housed in a separate chamber that sits on top of the case.

This approach works well and opens up the main chamber for your graphics card, but we have to talk about the looks of the CL6600 which are unusual and a bit quirky. Or rather, the main chamber is entirely conventional and looks good, but the Hypersplit chamber on top looks like a box has been dropped on top of your PC.

We don't see any way round this as it is fundamental to the design but the benefit is that this case and 360mm AIO cooler are delivered at a low price.

You can buy the DeepCool CL6600 for £156 HERE.

Pros:

• Simple design separates the CPU cooler from the graphics card.
• 360mm AIO cooler is included in the price.
• Split bottom air filters are very convenient.
• The headphone holder is neat.

Cons:

• The Hypersplit chamber on top of the case look rather clunky.
• Front IO panel is in awkward location if your PC is on the floor.
• The printed user guide is tiny
• CPU cooling is average.

KitGuru says:The DeepCool CL6600 is new, interesting and different. Balanced against that it is slightly odd.

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