Skip to main content
Cooler Master MasterFrame 400 Micro-ATX Case, High Airflow 360mm AIO Silver
Cooler Master

Cooler Master MasterFrame 400 Micro-ATX Case, High Airflow 360mm AIO Silver

Status: Cooler Master MasterFrame 400 Micro-ATX Case: Unavailable on Amazon as of . 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.

Bottom line: The Cooler Master MasterFrame 400 Micro-ATX Case is a specs-and-price decision rather than a crowd-consensus one in the pc cases category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

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

Similar: GAMDIAS ATX Mid Tower Gaming Computer PC Case… — $59.99 on Amazon as of 2026-10-21 20:20 UTC (price may vary).

Similar: Rosewill ATX Mid Tower Gaming Computer PC Case — $59.99 on Amazon as of 2026-10-21 20:20 UTC (price may vary).

Similar: darkFlash DB460M Micro-ATX PC Gaming Case — $64.99 on Amazon as of 2026-10-21 22:13 UTC (price may vary).

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.

Pros & Cons

Pros

  • ✓ 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

Designed for compact performance, MasterFrame 400 Mesh is a Micro-ATX/Mini-ITX open-frame chassis with a modular structure powered by Cooler Master’s FreeForm 2.0. It features magnetic mesh side panels, tool-free access, and support for dual orientations for flexible display and airflow optimization. Despite its small footprint, it supports 360mm radiators, high-performance GPUs, and custom cooling setups. Whether for clean showcase builds, portable systems, or creative workstation setups, the 400 Mesh offers full-sized modularity in a minimal space, giving users the freedom to build…

SpecPicks Verdict

SpecPicks scored Cooler Master MasterFrame 400 Micro-ATX 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

  • Flexible Layouts: Switch between vertical, horizontal, or inverted layouts to fit your desk, workflow, and style.
  • Build Your Way: The aluminum open-frame design delivers structural rigidity, clean airflow, and a bold, functional aesthetic.
  • Compact Yet Powerful: Fits Mini-ITX and Micro-ATX builds with space for up to nine fans, a top-mounted 360 mm radiator, and 390 mm GPUs with anti-sag support for cool, stable performance.
  • Future-Ready Connections: Front I/O includes USB 3.2 Gen 2x2 Type-C, dual USB 3.2 Gen 1 Type-A, and combo audio, giving you the speed and convenience modern setups demand.
  • Modern Front I/O: Equipped with USB 3.2 Gen 2 Type-C, dual USB 3.2 Gen 1 Type-A ports, and a combo audio jack for fast connectivity and charging.

Full Specifications

BrandCooler Master
ColorSilver
MaterialAluminum, Metal, Tempered Glass
Case TypeMini-Tower
Model NameMasterFrame 400
Unit Count1 Count
ConnectivityUSB
Model NumberMF400M-SHNN-S00
CompatibilitySwitch
Build Your WayThe aluminum open-frame design delivers structural rigidity, clean airflow, and a bold, functional aesthetic.
Cooling MethodAir
Mfr Part NumberMF400M-SHNN-S00
Number of Items1
Antenna LocationBusiness, Gaming
Flexible LayoutsSwitch between vertical, horizontal, or inverted layouts to fit your desk, workflow, and style.
Modern Front I/OEquipped with USB 3.2 Gen 2 Type-C, dual USB 3.2 Gen 1 Type-A ports, and a combo audio jack for fast connectivity and charging.
Compatible DevicesMicro-ATX, Mini-ITX motherboards, up to 390mm GPUs, up to 360mm radiators, multiple fans, USB 3.2 Gen 2x2 Type-C, dual USB 3.2 Gen 1 Type-A, combo audio peripherals
Enclosure MaterialAluminum, Metal, Tempered Glass
Total USB 3.0 Ports2
Warranty Description2 Year Manufacturer

Ready to buy?

Amazon shows no buyable offer for Cooler Master MasterFrame 400 Micro-ATX Case at the last check. A similar in-stock product is GAMDIAS ATX Mid Tower Gaming Computer PC Case…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $59.99

Related PC Cases

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →