Lian Li O11 AIR Full-Tower Case comes with Tower Chassis and Dual chamber Structure. It boasts a steel chassis, a windowed side panel, and a dual-chamber design to help boost air flow. The new O11 Air's drive caddy can be swapped for a second power supply unit or switched to a lower position in the case. The potential of mounting multiple Rads- Top/Bottom/Side can be mounted for up to three 360 radiators and front mentating also serves additional location for 240/280/360 radiators. This casing is designed with (Front)Plastic, (Side)Tempered Glass, (Body)0.8mm SPCC. Here Two bolts affixed to the windowed side panel help to secure the glass while allowing for easy removal. In this case, the angled motherboard tray and rear cable management bar help to organize and hide your cables. Specification: Case Type Type Full Tower Chassis Front Panel Plastic Tempered Glass Panel Side Motherboard Support E-ATX / ATX / Micro-ATX External Features Color(s) Black Weight 9.5kg Dimensions (W)270mm x(H)465mm x(D)476mm Front Ports (Front)Plastic Front 3x120mm(option) Filter (Front) x1 Expansion Slots 8 Radiator Support 120x 360mm / 120x 240mm / 140x 280mm Fan Support 2x 120mm fans included and 1x120mm fan option or 140mm x 2 on the top (option) , middle 3x 120 mm (option),bottom 3x120mm(option), Front 3x120mm(option) Drive Bays Supports up to 6 SSD and 3 HDD I/O Port USB3.0 x2 , USB3.1 Type-C x1 , HD Audio Additional Feature Cooling System ≤155mm PSU 2 (Optional)，(L)210mm~255mm(max) Side Panel Tempered Glass ..