Cooler Master

Cooler Master MasterBox 600 ATX Mid-Tower Case

Name: Cooler Master MasterBox 600 ATX Mid-Tower Case, Back-Connected Motherboard Asus|MSI|Gigabyte, 410mm GPU Max, *420mm AIO Max, Type C, Tempered Glass
Brand: Cooler Master
SKU: B0D62TBCWZ

Status: Cooler Master MasterBox 600 ATX Mid-Tower Case: Unavailable on Amazon as of 2026-10-19 10:21 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The Cooler Master MasterBox 600 ATX Mid-Tower Case is an ATX mid-tower case with a tempered-glass side panel; it fits graphics cards up to 410mm long and a 420mm radiator (manufacturer spec).

Unavailable on Amazon as of 2026-10-19 10:21 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: HAVN HS 420 VGPU Dual-Chamber Mid Tower ATX PC… — $329.99 on Amazon as of 2026-10-21 16:14 UTC (price may vary).

View Current Price — $329.99

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Original listing (currently unavailable) → Compare to similar pc cases

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-19

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Tailor-Made 140mm SickleFlow: The 140mm SickleFlow PWM fans deliver exceptional airflow
✓ Backed by Cooler Master's warranty and support channels

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The MasterBox 600 is engineered to elevate performance standards across the PC building community, ensuring all users can access top-tier features and capabilities. With ample room for a 420mm radiator and a 410mm GPU, alongside back-connector motherboard support, it sets a new benchmark for modern ATX cases.

SpecPicks Verdict

SpecPicks scored Cooler Master MasterBox 600 ATX Mid-Tower Case using a rating × review-volume × price-fit model applied to published specs and reviews across the pc cases category. Cooler Master's pc cases lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for pc cases of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

Back-Connected Motherboard: ITX / Micro ATX / ATX (Supporting Back-connector Motherboard) / E-ATX (*up to 12"x10.9" / 30.5cmx27.7cm motherboards, may impact cable management) Back Connector Motherboard Support: Yes
Components Clearance: Supports up to 410mm GPU, CPU coolers height of 170mm, and PSU 170mm in length.
Tailor-Made 140mm SickleFlow: The 140mm SickleFlow PWM fans deliver exceptional airflow
FineMesh Performance: Large mesh intakes ensure unrestricted airflow.
Pre-installed Fans - Rear: 1x 120mm CF120 ARGB (650~1200 rpm); Fan Support: 1x 120mm; Radiator Support - Rear: 120mm

Full Specifications

Brand	Cooler Master
Color	Black
Fan Size	14 centimeters
Material	Plastic, Stainless Steel, Tempered Glass
Case Type	Mid Tower
Model Name	MasterBox 600
Light Color	ARGB
Model Number	MB600-KGNN-S00
Cooling Method	Air, Water
Number of Fans	3
Mfr Part Number	MB600-KGNN-S00
Antenna Location	Business, Gaming
Compatible Devices	170mm CPU Cooler, 240mm Radiator, 360mm Radiator, 410mm Graphics Card, ATX Motherboard
Enclosure Material	Plastic, Stainless Steel, Tempered Glass
Total USB 3.0 Ports	1
Components Clearance	Supports up to 410mm GPU, CPU coolers height of 170mm, and PSU 170mm in length.
FineMesh Performance	Large mesh intakes ensure unrestricted airflow.
Warranty Description	2 Year Manufacturer
Hard Disk Form Factor	3.5 inches
Supported Motherboard	ITX, Micro ATX, ATX
Full listing title	Cooler Master MasterBox 600 ATX Mid-Tower Case, Back-Connected Motherboard Asus\|MSI\|Gigabyte, 410mm GPU Max, *420mm AIO Max, Type C, Tempered Glass, Triple 140mm SickleFlow PWM, FineMesh Airflow

Ready to buy?

Amazon shows no buyable offer for Cooler Master MasterBox 600 ATX Mid-Tower Case at the last check. A similar in-stock product is HAVN HS 420 VGPU Dual-Chamber Mid Tower ATX PC…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $329.99