Mid‑tower gaming chassis with a sleek black aluminum frame, tempered glass panels on three sides, and front RGB lighting. Supports ATX/EATX motherboards, 45 cm GPUs, 420 mm radiators, and up to seven 120‑140 mm fans. Includes cable management, USB‑C, audio jacks and Aura Sync control.
| Brand | ASUS |
| EAN | 4718017245791 |
| Model | 90DC0020-B39000 |
| MPN | 90DC0020-B39000 |
| SKU | 90DC0020-B39000 |
| ASIN | B07RS9CM53 |
| Cable Routing Space | 33 mm mm |
| Case Edition | ROG Strix Helios |
| Case form factor | Mid Tower |
| Chassis Contruction Materials | Aluminium / Steel / Tempered Glass |
| Colours | Black |
| Compatability | VGA card - up to 318 mm |
| Dimensions | 250 x 591 x 565 (WxHxD mm) |
| Drive bays | 4 x 2.5" Internal 2 x 2.5"/ 3.5" Internal |
| Dust Filters | Bottom Front Top |
| Fan Bays | 7 x 120mm / 6x 140mm |
| Fan Controller | Front Panel Fan Controller |
| Fans Included | 4 x 140mm |
| FireWire connectors | No |
| Front Radiator Compatibility | 1 x 120/140/240/280/360/420mm |
| LED Lighting | Yes |
| LED Lighting Colour | RGB |
| LED Lighting Emitters | Front Panel Addressable RGB LED Lighting |
| Max CPU Cooler Height | 190 mm |
| Max GPU Card Length | 450 mm |
| Max PSU Length | 220 mm |
| Motherboard form factor | ATX E-ATX (Upto 12" x 10.9") MicroATX Mini-ITX |
| PSU Included | No |
| PSU Mounting Location | Bottom Mount, Rear |
| PSU Support | ATX |
| Rear Radiator Compatibility | 1 x 120/140mm |
| Refresh rate | 60Hz 2Ms Response Time |
| Soundproof | No |
| Standard Expansion Slots | 8 |
| Top Radiator Compatibility | 1 x 120/140/240/280/360mm |
| Vertical Expansion Slots | 2 (additional vertical) |
| Weight | 18 kg (Approx) |
| Window Configuration | 1 x Alternate Side 1 x Front 1 x Main Side |
| Window Construction | Tempered Glass (Tinted) |
| Windows | Yes |