The ASUS ROG Strix Helios II takes the concept of a mid-tower gaming chassis to a whole new level, blending premium materials with outstanding cooling capabilities. Designed for showcase builds, it features a diamond-grille aluminum front panel, tempered glass side panels, and enough space for high-end components, making it ideal for enthusiasts and competitive gamers alike.
Bold Design Meets Functionality
Available in black or white, the Helios II stands out with its 3D-structured front filter that reduces noise while optimizing airflow. The tempered glass panels offer a panoramic view of the internal build, perfect for displaying RGB lighting setups. Its aluminum front frame is not just for looks — it also ensures rigidity and a premium feel, reinforcing its place as a showpiece in any gaming setup.
Serious Cooling Power
The case comes with four pre-installed 140mm PWM fans, each with an extra-thick 28mm frame for quieter and more powerful airflow. Cooling flexibility is unmatched, with support for up to a 420mm radiator at the front and up to a 360mm unit at the top. This level of thermal headroom makes it perfect for custom water-cooling loops or high-performance AIO coolers, ensuring your hardware stays cool under pressure.
DIY-Friendly and Spacious
Supporting EATX motherboards and GPUs up to 450mm in length, the Helios II is built for heavy-duty builds. Its tool-free PCIe mount and detachable PSU bracket simplify installation, while 33mm of cable routing space, cable covers, and rear cable clips make for a clean and organized interior. The vertical GPU mount option adds even more flexibility for builders aiming for a unique look.
Connectivity and Quality-of-Life Features
The front I/O panel offers four USB 3.0 ports, two USB 20Gbps Type-C® ports with 60W fast charging, and a combination audio jack. Integrated ARGB and fan controllers manage up to six fans and six lighting devices, reducing cable clutter. Built-in case straps on top make moving your rig easier, whether it’s to a LAN party or a simple room rearrangement.
With its combination of aesthetics, cooling prowess, and builder-friendly design, the ASUS ROG Strix Helios II is a standout choice for PC enthusiasts. Pricing and availability may vary by region, so check local listings or visit the ASUS website for details.
Technical Specifications
| Motherboard compatibility | E-ATX (up to 12” x 10.9”), ATX, Micro-ATX, Mini-ITX |
|---|---|
| Colors | Black, White |
| Dimensions | 250 x 591 x 565 mm |
| Material | Aluminum, Steel, Tempered Glass, ABS Plastic |
| I/O ports | 4 x USB 5Gbps, 2 x USB 20Gbps (Type-C®), 1 x Headphone + Microphone |
| 3.5”/2.5” Drive Bays | 2 |
| 2.5” Drive Bays | 4 |
| Expansion Slots | 8 |
| Vertical Expansion Slots | 2 |
| Maximum GPU Length | 450mm |
| Maximum CPU Cooler Height | 190mm |
| Maximum PSU Length | 220mm |
| Radiator Compatibility | Front: 120/140/240/280/360/420mm; Top: 120/140/240/280/360mm; Rear: 120/140mm |
| Cooling Support | Front: 3 x 140mm / 3 x 120mm; Top: 2 x 140mm / 3 x 120mm; Rear: 1 x 140mm / 1 x 120mm |
| Pre-Installed Fans | Front: 3 x 140mm PWM; Rear: 1 x 140mm PWM |
| Removable Dust Filters | Front, Top, Bottom |
| Cable Routing | Max. 33mm |
| Extension Hub | Supports PWM Fan x 6, ARGB LED Strip x 6 |
| Weight | Case only: 18kg; In packaging: 21kg |










