• Premium design: The Helios II is made for showcase builds, with aluminum front panel featuring diamond-grille design and 3D-structured filter to support effective cooling
• Optimal thermal performance:  Pre-installed four 140 x 28mm performance fans deliver ultimate airflow
• Ready for the DIY experience: PC building is made easy with support for EATX motherboards and graphics cards up to 450mm long, plus a graphics card slot clamp and a rear detachable PSU bracket
• Tidy PC building: Effortless cable management is enabled by a multifunction cover with graphics card holders, a PSU shroud, a cable cover and rear cable clips
• Advanced I/O panel: This section features two USB 20Gbps Type-C^® ports, four USB-A 3.0 ports, an ARGB-lighting control button and a fan-speed PWM control button
• Comfortable case straps: Easily carry your prized build to LAN parties with ergonomic and stylish X-shaped woven straps

Striking Looks. Cool Moves.

ROG Strix Helios II is a premium mid-tower gaming case featuring dual tempered glass side panels, a refined aluminum frame, and a diamond grille front panel with a 3D-structured front filter. It comes pre-installed with four 140 x 28 mm performance fans, delivering optimized airflow and enhanced thermal performance for demanding gaming setups. Engineered for expandability and performance, it’s ready for motherboards ranging from ITX to EATX and serious water-cooling setups as well – making it the perfect choice for a classic ROG showcase build.

Premium Design & Aesthetics

ROG Strix Helios II is made for showcase builds with dual 4mm-thick tempered glass side panels fitted in a refined brushed-aluminum frame. The aluminum front panel, featuring a diamond grille design, is manufactured using high-precision CNC milling technology and an anodizing process. The diagonal slashes on the front are inspired by race car elegance and individuality to make the Helios II unique. With rounded edges, a streamlined shape and hidden seams, this chassis is sleeker than ever.

Four Pre-Installed Performance Fans

The Helios II is designed to balance performance and acoustics: Four pre-installed 140mm fans with 28mm frames deliver strong airflow while maintaining a low 29 dB(A) noise level.

Ready For High-Performance Builds With Dual AIO Support

The ROG Strix Helios II is built to perform and primed for expansion, with ample space for GeForce RTX™ 5090 graphics cards or hardcore water-cooling setups. It can handle a ROG Ryuo IV SLC 360 ARGB AIO cooler and the 360mm radiator of the ROG Astral LC GeForce RTX 5090 at the same time. It features support for radiators up to 420mm in the front and 360mm at the top, with room reserved for installing the pump and reservoir of a custom loop.