Cooler Master - MasterFrame 400 mATX Modular Case - Open Frame, ARGB Fan, 390mm GPU, Silver - Silver
Reviews coming soon
About this product
Cooler Master MasterFrame 400 mATX Modular PC Case - Micro-ATX/Mini-ITX, Aluminum Open Frame Chassis, 1 x ARGB Fan Preinstalled, 390mm GPU, 360mm Radiator Support, Silver
Features
Aluminum open-frame for rigidity and airflow
The aluminum open-frame design delivers structural rigidity, clean airflow, and a bold, functional aesthetic.
MPN
Flexible Layouts
UPC
Switch between vertical, horizontal, or inverted layouts to fit your desk, workflow, and style.
Country of Origin
Build Your Way
Compact Yet Powerful
Specifications
- Motherboard Form FactormicroATXMaximum GPU Length390.0 millimetersProduct Height10.28 inchesProduct Width14.72 inchesProduct Depth20 inchesWindow Panel(s)None
Reviews
This product doesn't have any reviews yet.
Compare similar products

Cooler Master MasterFrame 400 mATX Modular PC Case - Micro-ATX/Mini-ITX, Aluminum Open Frame Chassis, 1 x ARGB Fan Preinstalled, 390mm GPU, 360mm Radiator Support, Silver

Phanteks XT V3, Compact Micro-ATX Gaming Chassis, Tempered Glass Front & Side, 3x 120mm D-RGB fans, 360mm Radiator Support, Black

The B4 mATX is a 21.3-liter small form factor case developed in collaboration with DAN Cases. Designed to deliver strong hardware compatibility in a compact footprint, it supports mATX motherboards, up to 358mm GPUs, and both ATX and SFX power supplies. The B4 mATX can be positioned either horizontally or vertically, allowing users to adapt the system style to their workspace. Multiple front panel options are available, including mesh or real wood finishes, giving the B4 mATX a versatile aesthetic suited for both gaming and lifestyle. With thoughtful airflow design, modular mounting brackets, and flexible cooling configurations, including support for up to a 360mm AIO when using an SFX PSU, the B4 mATX delivers the performance potential of larger cases within a compact SFF design

LIAN LI A3- mATX-WD Black Wood front panel SPCC M-ATX / ITX Computer Case ------ A3- mATX-WD Black
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.





![esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12
1 2 3 4 5 6 7 8 9 0 - = backspace
tab Q W E R T Y U I O P [ ] \
capslock A S D F G H J K L ; ' return
shift Z X C V B N M , . / shift
control option fn space alt alt esc enter](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/84ec446f-28a4-4f2b-b878-d50893f6aa4d.jpg;maxHeight=232;maxWidth=233?format=webp)











































