ASUS A21 PLUS GAMING MICRO ATX CASE is a compact chassis designed for mainstream DIY PC builders that supports micro-ATX and mini-ITX motherboards. It features a mesh front panel for airflow, a tempered glass side panel to show off components, and four pre-installed ARGB fans for cooling and lighting.

Motherboard support: Micro-ATX, mini-ITX, and BTF-compatible motherboards
Case dimensions (W x H x D): 220 x 465 x 430 mm
Weight: 8.1 kg
CPU cooler height (max): 165 mm
GPU length (max): 380 mm
PSU length (max): 210 mm
Drive bays: 1x 2.5" bay and 2x 2.5"/3.5" combo bays
Expansion slots: 5
Front I/O port: 2x USB 3.2 Gen 1, 1x headphone, 1x microphone
Pre-installed fans: 3x 120mm ARGB fans in front, 1x 120mm ARGB fan in rear
Radiator support:
Front: 120mm, 140mm, 240mm, 280mm, 360mm
Top: 120mm, 140mm, 240mm, 280mm, 360mm
Rear: 120mm