ASUS ROG STRIX HELIOS II White Mid Tower Tempered Glass PC Case
ASUS ROG STRIX HELIOS II White Mid Tower Tempered Glass PC Case
Scan code: LN170902 Manufacturer code: 90DC00W3-B39000
£349.99Item due on 15 July 2026
Due 15th Jul
  • Thumbnail 1 : ASUS ROG STRIX HELIOS II White Mid Tower Tempered Glass PC Case
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ASUS ROG STRIX HELIOS II White Mid Tower Tempered Glass PC Case

ASUS ROG STRIX HELIOS II Chassis, White, Mid Tower, 4x 140mm PWM Fans, USB 3.2 Gen2x2, E-ATX / ATX / mATX / mITX

Scan code: LN170902 Manufacturer code: 90DC00W3-B39000
£349.99
Item due on 15 July 2026
Due 15th Jul
Pay in 3 interest-free payments of £116.67

Email me when the availability or price changes

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  • From £17.09 / month (APR 16.9%) for 24 months or 0% for 4 months
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  • SCANPROTECT Protect against installation damage for 28 days.
  • 48HR REPLACEMENT If you need to return this item, your replacement will be dispatched within 2 working days of your product arriving back at Scan.

Suggested Alternatives

ROG Strix Helios II Black Mid Tower Case from ASUS

ROG Strix Helios II Mid Tower Case from ASUS

Striking Looks. Cool Moves. ROG Strix Helios II stands out as a high-end mid-tower chassis designed for serious gamers. It sports dual tempered glass panels, a sleek aluminium frame, and a distinctive diamond-cut front grille paired with a 3D-structured dust filter. Equipped with four pre-installed 140 x 28mm high-performance fans, it ensures superior airflow and exceptional thermal management for intense gaming rigs. Built with flexibility in mind, it supports ITX to EATX motherboards and complex custom cooling solutions, making it the ultimate centerpiece for any ROG-inspired setup.

Please Note:

Images from this point are used for illustration purposes. For the selected variant, please refer to the sections above.

Premium Design and Aesthetics

Zoomed in section of the front grille to highlight aesthetics and cooling

Diamond Grille Design ROG Strix Helios II is crafted for striking showcase builds, featuring dual 4 mm tempered glass side panels framed in premium brushed aluminium. Its aluminium front panel sports a bold diamond grille, precisely CNC-milled and finished through an advanced anodising process. The angled slashes across the front draw inspiration from race car styling, reflecting speed and character that set the Helios II apart. With smooth contours, seamless joints, and a refined silhouette, this chassis achieves a level of sophistication that feels both modern and timeless.

Front angle of case, revealing four pre-installed fans

Four Pre-Installed Fans The Helios II is built to deliver the perfect harmony of cooling efficiency and quiet operation. It comes equipped with four pre-installed 140 mm fans featuring 28 mm frames, providing powerful airflow and maintaining an impressively low noise level of just 29 dB(A).

103 CFM Airflow

2.3 mmH2O Static Pressure

29 dB(A) Noise Level

Dual AIO Support

ROG Strix Helios II is engineered for uncompromising performance and expandability, offering generous space for GeForce RTX™ 5090 graphics cards and advanced water-cooling systems. It can handle both a ROG Ryuo IV SLC 360 ARGB AIO cooler and the 360 mm radiator of the ROG Astral LC GeForce RTX 5090 simultaneously. With support for radiators up to 420 mm in the front and 360 mm at the top, plus dedicated space for a custom loop’s pump and reservoir, it’s fully equipped for elite-level cooling configurations.

Horizontal Installation

Side of case, hightlighting horizontal installation of graphics card

Vertical Installation

Side of case, hightlighting vertical installation of graphics card
Side of case, hightlighting fan support
Side of case, hightlighting radiator support

Easy Installation and Maintenance

ROG Strix Helios II incorporates thoughtful design mechanisms to ensure an effortless building process, ideal even for first-time builders. Maintaining a spotless setup is simple too, thanks to integrated dust filters and convenient accessibility across every section of the chassis.

Tool-Free Side Panel Design

Tool-Free Side Panel DesignPressing a rear button releases the side panel for effortless, tool-free access. The hinged tempered glass swings open or detaches entirely.

Modular Fan & Radiator Mounts

Modular Fan & Radiator MountsTwo detachable brackets allow fans and radiators to be mounted beforehand, streamlining installation and making the entire build process easier.

Patented Graphics Card Slot Clamp

Patented Graphics Card Slot ClampA tool-free GPU slot clamp speeds up installation, locking your graphics card securely with a quick, effortless snap.

Dust Filters

Dust Filters The 3D-structured front filter ensures generous airflow space for front fans while minimising noise. Together with removable top and underside filters, it delivers complete dust protection and effortless maintenance.

Rear Detachable PSU Bracket

Rear Detachable PSU BracketA removable rear bracket streamlines installation, letting the power supply slide smoothly into place with minimal effort.

Effortless Cable Management

Maintain a clean, organised build with versatile covers and advanced cable management. A velcro-equipped grommet channel neatly secures dual cable sets.

Multifunction Cover

Multifunction Cover A multifunction cover with graphics card braces cleverly hides cabling while providing sturdy support to graphics cards. Its position can be adjusted to accommodate an ATX or EATX motherboard.

PSU Shroud

PSU Shroud The movable two-piece PSU shroud has a front cut-out to enable compatibility with the OLED panels of ROG Thor or other power supplies.

Cable Cover

Cable Cover A cable cover conceals unsightly wiring, resulting in a clean and organised build. In addition, the Helios II provides versatile cable management with a cable grommet bar featuring three large straps for two sets of cables.

Rear Cable Clip

Rear Cable Clip Rear cable clips help ensure clean cable management.

Ergonomic Case Straps

Top angle of the case, showcasing the top case straps

Reliable and Comfortable TransportEasily carry your prized build to LAN parties with ergonomically X shape woven fabric straps that combine style and comfort, rigorously tested to support up to 50kg for reliable transport.

Specifications
Core Chassis Specifications
Case Edition ROG Strix Helios II
Case Form Factor Mid Tower
Motherboard Form Factor
  • ATX
  • E-ATX
  • MicroATX
  • Mini-ITX
Back Connect Compatible No
I/O, Bays & Expansion
Front/Side/Top Panel I/O
  • 1 x Fan Controller Button(s)
  • 1 x Headphone/Mic Combo
  • 1 x LED Control
  • 4 x USB 3.2 Gen1 Type-A
  • 2 x USB 3.2 Gen2x2 Type-C
Drive Bays
  • 4 x 2.5" Internal
  • 2 x 2.5"/ 3.5" Internal
Standard Expansion Slots 8
Vertical Expansion Slots 2
Fans & Filters
Fan Bays 7 x 120mm / 6x 140mm
Fans Included 4 x 140mm
Fan Controller/Hub Built-in Fan Hub with Front Panel Controller
Dust Filters
  • Bottom
  • Front
  • Top
Liquid Cooling Support
Front Radiator Compatibility 1 x 120/140/240/280/360/420mm
Top Radiator Compatibility 1 x 120/140/240/280/360mm
Bottom Radiator Compatibility 1 x 120/140mm
Rear Radiator Compatibility  
Side Radiator Compatibility  
Clearances
Max CPU Cooler Height 190 mm
Max GPU Card Length 450 mm
Cable Routing Space 33 mm
Side Panels
Window/s Yes
Window Configuration
  • 1 x Alternate Side
  • 1 x Main Side
Window Construction Tempered Glass
LED Lighting Functionality
LED Lighting No
LED Lighting Emitters  
LED Lighting Colour  
LED Lighting Support & Control  
Power Supply Compatibility
PSU Included No
PSU Wattage (If Included)  
PSU 80+ Rating (If Included)  
PSU Support ATX
PSU Mounting Location Bottom Mount, Rear
Max PSU Length 220 mm
Chassis Physical Specifications
Colour White
Chassis Construction Materials Aluminium / Tempered Glass
Front Panel Type N/A
Dimensions 250 x 565 x 591 (WxHxD mm)
Weight 18 kg (Approx)
Package Type Retail
Please Note  
Additional Information
Scan Code LN170902
Model Number 90DC00W3-B39000
GTIN 4711636061247
Warranty

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

Details
Duration:
24 months
Type:
Direct
DOA Period:
1 days
Manufacturer Contact Details
Manufacturer:
ASUS
Telephone:
01442 265548
Buying Guide
Not sure which case is right for you? Read our Case Buying Guide
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Chassis Airflow
Chassis Airflow
Date Issued: 20th Oct 2008

The modern PC is potentially a mass of heat output and heat production hot spots. With CPUs rated at more than 100W of heat output, single graphics boards carrying similar ratings (and people want to run two!), multiple hard drives the norm, lots of memory and mainboards covered in heatpipes to combat toasty core logic and PWM circuits, a PC appreciably warming up a room when it’s working hard is no joke.

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Watercooling
Watercooling
Date Issued: 19th Jun 2008

Watercooling for the PC has been around for years in some form or another, for at least as long as Scan have been in business, with basic physics defining why you want to use it. That means for air cooling, to cope with increasing temperature in the heatsink you need to move the air across it faster. That is why thermostatically controlled fans in your PC will turn faster the hotter something gets.

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ASUS ROG STRIX HELIOS II White Mid Tower Tempered Glass PC Case
ASUS ROG STRIX HELIOS II White Mid Tower Tempered Glass PC Case

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Instalment Rate: 16.9% p.a. (fixed)
Cost of purchase: £349.99
Total inc. interest: £380.48
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Instalment Rate: 16.9% p.a. (fixed)
Cost of purchase: £349.99
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