Cooler Master MasterFrame 400 Micro ATX PC Case, Premium Aluminum mATX Modular Chassis, 1x ARGB Fan, 390mm GPU Support, 360mm AIO Radiator, Dual Orientation, USB 3.2 Type-C, Black

Name: Cooler Master MasterFrame 400 Micro ATX PC Case, Premium Aluminum mATX Modular Chassis, 1x ARGB Fan, 390mm GPU Support, 360mm AIO Radiator, Dual Orientation, USB 3.2 Type-C, Black
Brand: Cooler Master
SKU: awhd-us-b0gw9lm71x
Price: 189.99 USD
Availability: InStock

Brand: Cooler Master

Condition: Used

$189⁹⁹

$199⁹⁹

-5% Save $10⁰⁰

Updated: 8 days ago

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Description

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.

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Product Details

SKU:: awhd-us-b0gw9lm71x
Model:: MF400M-KHNN-S00
Country:: US
ASIN:: B0GW9LM71X
UPC:: 884102134937

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $10 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for Cooler Master products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.