Cooler Master Cosmos C700M Case

Cooler Master Cosmos C700M

Brand
Cooler Master
Model
Cosmos C700M
$526–$581estimated range · from catalog price Sep 3, 2026

Cooler Master’s Cosmos C700M is a flagship E‑ATX full tower with 490mm GPU and 198mm cooler clearance, dual 420mm radiator support, and a rotatable GPU mount.

TierFlagship?GixCore tierWhat a part was built to do — not what it costs.EntryBudgetMainstreamHigh endEnthusiastFlagship A part can be cheap because it is an ageing flagship, or because it is a current entry-level model. The tier tells you which.
ReleasedOct 2018
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Form factorATX
ColorBlack
Tempered glassYes
GixCore Editorial

Product overview

Released October 2, 2018, the Cosmos C700M is a modern flagship of Cooler Master’s long‑running COSMOS series, pairing a curved‑glass showcase with a highly reconfigurable frame and an included 400 mm GPU riser.Sourceprweb.com

Built to remove fit limits for statement builds, it targets water‑cooling and display‑focused rigs. It supports Mini‑ITX to E‑ATX (up to 12"×10.7"), GPUs up to 490 mm (320 mm with the 3.5" bracket), and 198 mm tower coolers; two flat brackets accept up to 420 mm radiators at the top or front (bottom to 240 mm). Front I/O includes USB‑C (Gen2), 4× USB‑A, headset+mic, and onboard PWM/ARGB controls. Aluminum bars/handles, 8 slots, a 5.25" bay, and optional conventional, chimney, or inverse layouts round out the feature set.Sourcecoolermaster.com

Best for
  • water cooling/radiators
  • showcase/RGB
  • high GPU clearance
  • airflow builds
Official product specifications

Specifications

Form factor
ATX
Color
Black
Tempered glass
Yes
Dimentions
‎25.6 x 12 x 25.6
Weight
52.5
I O Ports
4x USB 3.0, 1x USB 3.1, 1x MIC, 1x AUX
Expansion Slots
8
Pairing fit

Compatible Motherboards

Compatible options ranked for this part's performance class.

Budget pairings6 lower-tier compatible options
Pairing fit

Compatible Power supplies

Compatible options ranked for this part's performance class.

Budget pairings6 lower-tier compatible options