Quick Look

A-Top AT900
Mid Tower ATX

The Good


+ Thumb screw side panel access
+ Efficient cooling

+ Removable motherboard tray
+ Drive rails

The Bad

- Poor construction quality
- Non-removable drive bays

A little while back, AnandTech took a look at the Atop Translucent X2, the first translucent case to make its way into our labs. Unfortunately, we found that case a poor choice for anyone interested in anything beyond the looks of their case.

But Atop has been in the business for quite a while, with OEM wins such as DTK. That doesn't just happen as a result of pure luck, so they must be doing something right.

Today we take a look at the second Atop case to run through our gauntlet of tests. That case is the AT900, which is a far more traditional model than the Translucent X2.




Form Factor ATX Mid Tower
Drive Bays

4 external 5.25"
2 external 3.5"

2 internal 3.5"


Power supply exhaust fan
80mm intake fan in front (included)
40mm exhaust fan in rear (optional)

Other Features Thumb screw side panel access
Slide out motherboard tray

21" x 7.5" x 17"

Power Supply Tough Power ATP250-ATX
Design & Expansion
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