Cougar GEMINI X Dual Tower PC Case
The Cougar GEMINI X is a dual tower PC case that holds two systems in one chassis: a primary side for Mini ITX, Micro ATX, ATX or CEB boards with a standard ATX PSU, and a secondary side for a Mini ITX board with an SFX PSU. It is built from 3mm thick aluminum with a 5mm thick tempered glass cover and measures 426 x 635 x 525 mm (W x H x D).
It suits builders who want a gaming PC and a second machine, such as a streaming, server or work box, under one roof without two separate cases on the desk. Because it is large and has strict cooler and PSU limits on each side, it is best for people who plan both builds carefully. You can find more options in our PC cases.
Highlights
- Dual tower design: primary side takes Mini ITX / Micro ATX / ATX / CEB, secondary side takes Mini ITX
- 3mm thick aluminum body with a 5mm thick tempered glass cover
- Primary side: graphics cards up to 350 mm, CPU coolers up to 140 mm, standard ATX PSU up to 160 mm, 8 expansion slots
- Secondary side: graphics cards up to 330 mm, CPU coolers up to 140 mm, SFX PSU up to 100 mm, 2 expansion slots
- Radiator support on the primary side: left 240mm / 120mm and rear 240mm / 120mm
- Front I/O: USB 3.1 Gen2 Type-C x1, USB 3.0 x2, mic and audio jacks
Best for
- Running a gaming PC and a streaming or capture PC in one case
- Pairing a main workstation with a small Mini ITX home server or second system
- Showpiece builds that use a thick aluminum and tempered glass chassis
- Full-size ATX or CEB builds with long graphics cards up to 350 mm
Specifications
| Model Name | GEMINI X |
|---|---|
| Case Form Factor | Dual Tower |
| Dimension (WxHxD) | 426 x 635 x 525 (mm) / 16.77 x 25 x 20.66 (in) |
| Aluminum | 3mm thick |
| Tempered glass cover | 5mm thick |
| Primary - Motherboard Type | Mini ITX / Micro ATX / ATX / CEB |
| Primary - I/O Panel | USB 3.1 Gen2 Type-C x1 / USB3.0 x 2/ Mic x 1 / Audio x 1 |
| Primary - Cooling System | Left 120mm x 2; Right 120mm x 2; Rear 120mm |
| Primary - Water Cooling Support | Left 240mm / 120mm; Rear 240mm / 120mm |
| Primary - Expansion Slots | 8 |
| Primary - Max. Graphics Card Length | 350 (mm) / 13.77 (in) |
| Primary - Max. CPU Cooler Height | 140 (mm) / 5.51 (in) |
| Primary - PSU | Standard ATX PS2 |
| Primary - Max. PSU length | 160 (mm) / 6.3 (in) |
| Secondary - Motherboard Type | Mini ITX |
| Secondary - 3.5" Drive Bay | 4 |
| Secondary - 2.5" Drive Bay | 4 |
| Secondary - Expansion Slots | 2 |
| Secondary - Cooling System | Left 120mm x 2; Right 120mm x 2; Rear 120mm |
| Secondary - Max. Graphics Card Length | 330 (mm) / 12.99 (in) |
| Secondary - Max. CPU Cooler Height | 140 (mm) / 5.51 (in) |
| Secondary - PSU | SFX |
| Secondary - Max. PSU length | 100 (mm) / 3.9 (in) |
Compatibility and related parts
Plan each side separately: the primary system needs a standard ATX unit no longer than 160 mm, while the secondary system needs an SFX unit no longer than 100 mm, so check lengths when choosing power supplies. Both sides cap air coolers at 140 mm in height, which rules out many tall tower coolers, so compare heights in our CPU coolers or use a 240mm or 120mm radiator on the primary side's left or rear mount. For the 120mm fan positions on each side, browse case fans, and use the PC builder to check compatibility; parts bought as a PC build get free assembly and testing.
Couldn't load pickup availability
Warranty
Warranty
- All products come with a 1-year official local warranty, unless mentioned otherwise.
- Accessories (such as cables, covers, power banks, etc.) are not covered under warranty.
- Please check your item at the time of delivery—you may refuse the order if you notice any damage.
- The warranty provided is an official local manufacturer warranty.
- Apple products include both local and international warranty, as per Apple’s policy.
Shipping & Returns
Shipping & Returns
• Shipping: Orders are processed within 0–2 business days. Standard delivery takes 0–5 business days depending on your location.
• Returns: You may return or exchange products within 10 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
No advance payments required—even for preorders. Pay on delivery or cancel anytime, hassle-free.
FAQs
Can the Cougar GEMINI X really hold two PCs?
Can the Cougar GEMINI X really hold two PCs?
How long a graphics card fits in the GEMINI X?
How long a graphics card fits in the GEMINI X?
Will a tall tower air cooler fit?
Will a tall tower air cooler fit?
What power supplies does it need?
What power supplies does it need?
Why OutGeeked
Genuine tech, delivered across Lebanon.
- 4,800+products across phones, laptops, gaming and more
- 370+brands, every item brand-new and genuine
- 1 yearwarranty on most phones, laptops and gadgets
- Cashon delivery, anywhere in Lebanon
Not sure which one to pick?
Message a real person on WhatsApp. Send the model you're considering and we'll help you compare.
Chat on WhatsApp- Hours · Mon–Fri, 10am–6pm
- Call · +961 71 906 011
- Email · sales@outgeeked.net
- Contact page

