ASUS ROG Strix Helios II Midi-Tower Case with window and RGB lighting, Black

The ASUS ROG Strix Helios II is a mid-tower case constructed with an aluminum frame and dual 4 mm tempered glass panels. It supports a wide range of motherboard sizes, from Mini-ITX up to the larger EATX form factor. The design incorporates a diamond-patterned front panel with an integrated dust filter and ARGB illumination that is compatible with Aura Sync for synchronized lighting effects across components. Its substantial dimensions and weight provide a stable foundation for high-performance system builds.

This chassis is configured for extensive thermal management, arriving with four pre-installed 140 mm PWM fans to establish airflow. It offers flexible cooling upgrade paths, with mounting locations for multiple fans and liquid cooling radiators. The front panel can accommodate a radiator up to 420 mm, while the top supports up to a 360 mm radiator, facilitating complex custom cooling loops. Integrated fan speed and RGB controllers allow for direct management of system thermals and lighting.

Component installation and cable management are addressed with several practical features. The case provides eight standard expansion slots plus two vertical slots for alternative GPU mounting. For storage, it includes a drive cage that supports a combination of 2.5-inch and 3.5-inch drives. The front I/O panel is equipped with four USB 3.2 Gen 1 Type-A ports, two USB 3.2 Gen 2x2 Type-C ports, and a combination audio jack for broad device connectivity.

• Form factor: Mid Tower; supports EATX, ATX, Micro-ATX, and Mini-ITX motherboards
• Dimensions: 250 mm (W) x 591 mm (H) x 565 mm (D)
• Materials: Aluminum frame and 4 mm tempered glass panels
• Front I/O: 4x USB 3.2 Gen 1 Type-A, 2x USB 3.2 Gen 2x2 Type-C, Combo Audio Jack
• Expansion slots: 8 horizontal and 2 vertical
• Drive bays: Supports two 3.5-inch drives and four 2.5-inch drives
• Pre-installed fans: Three 140 mm PWM front fans and one 140 mm PWM rear fan
• Radiator support: Up to 420 mm in front, 360 mm on top, and 140 mm in the rear
• Component clearances: 190 mm max CPU cooler height, 220 mm max PSU length
• Cable management: Includes dedicated routing channels and tie-down points