The ASUS A21 PLUS microATX case offers support for hidden-connector motherboards, 360 mm radiators, and 380 mm graphics cards. It features two color options, four pre-installed ARGB fans, and clean cable management. This case is compatible with motherboards featuring hidden connectors, maximizing clean cable management for a clutter-free build. It supports up to 360 mm radiators, graphics cards up to 380 mm in length, and CPU air coolers up to 165 mm in height. The A21 PLUS boasts four ARGB fans for exceptional cooling, and its front-panel mesh is 40% porous to balance airflow, dust filtering, and RGB visibility. Ample cable management is provided with a 33 mm wide compartment behind the motherboard. Specifications: Maximum PSU length 21 cm, Maximum graphics card length 38 cm, Maximum CPU cooler height 16.5 cm. Illumination colour: Multi, Number of expansion slots: 5, Number of 2.5" bays: 1, Number of 3.5" bays: 1. Supported motherboard form factors: micro ATX, Mini-ITX. Product colour: Black. Type: PC. Ports & interfaces: USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2. Cooling: Top radiator sizes supported 120,140,240,280,360 mm, Rear radiator sizes supported 120 mm, Front radiator sizes supported 120,140,240,280,360 mm. Top fans diameters supported 120,140 mm, Number of top fans supported (max) 3. Rear fans diameters supported 120 mm, Number of rear fans supported (max) 1, Rear fans installed 1x 120 mm. Front fans diameters supported 120,140 mm, Number of front fans supported (max) 3, Front fans installed 3x 120 mm. Storage: HDD/SSD combo cage Yes, Supported HDD sizes 2.5,3.5". Weight & dimensions: Weight 8.1 kg, Height 465 mm, Depth 430 mm, Width 220 mm. Packaging data: Package weight 9.8 kg, Package height 493 mm, Package depth 288 mm, Package width 525 mm.