We were impressed by Cooler Master's modular MasterCase 5 and 5 Pro when we reviewed them at the end of 2015. The company's designers have definitely not been sitting on their hands since then, as evidenced by the release of the even-more-customizable MasterCase Maker 5 and Maker 5t cases. Cooler Master has a new model out, the MasterCase 6, espousing the same "FreeForm" modular design principles as its forebears.
The MasterCase 6 is designed to accomodate full-size ATX motherboards. Normally we would describe the number of available 2.5", 3.5", and 5.25" drive bays, but the case's modular design complicates things. We'll instead say that the MasterCase 6 has a pair of 5.25" external drive bays and that the number of internal drives can be determined by the user. CPU coolers up to 7.5" (19 cm) tall will fit in the case, along with power supplies up to 7.9" long (or 20 cm). Graphics cards as long as 11.7" (30 cm) will fit with the middle 3.5" drive cage in place. Those that have moved to mostly-SSD storage should be able to fit graphics cards that are 16.2" long (41.2 cm).
On the subject of cooling, the front panel can fit up to a total of three 120-mm fans, and comes with a two 140-mm units fitted from the factory. The rear fan mount comes filled with another 140-mm spinner. The top panel can fit a pair of 120-mm or 140-mm fans, though buyers will have to supply these. Radiators can be fitted to any of those three locations, if air cooling is deemed to be insufficient.
Available modules include graphics card support braces, multiple optional drive cage types, and a vertical graphics card holder for showcasing a high-end display card through the side panel window. The MasterCase 6's external appearance is more streamlined than the previous models, which could allow the chassis to blend in better with its environment. When additional cooling power is more important than a seamless look, the front and top panels can pop out to allow for additional airflow.
The chassis is made of steel and plastic, and the rather hefty 25.7 lbs (11.7 kg) weight bears this out. The chassis measures 21.8" x 9.25" x 21.6" (55 cm x 24 cm x 55 cm), which is a litttle longer than previous models. The extra length probably comes from the removable rear cover panel, which allows users to obscure exposed cabling on the back of the chassis. Since the MasterCase 6 appears to share its predecessors' modular system, we'd wager that CM's existing tempered glass panels will fit.
The front panel has a standard set of ports, devoid of the USB Type-C connector present in the MasterCase Maker 5. Shoppers with small children might like the fact that the front port cluster and the power button are on the top of the case, shrouded by a pop-up cover that might keep little fingers from prompting unscheduled reboots.
Cooler Master didn't offer pricing or availability information, but ComputerBase says the MasterCase 6 will be available in Europe in February at an recommended price of 160€. The MasterCase 6 will be available in the pictured dark grey finish with blue or red LED accents.