Antec 900 Full Tower Case Black
£237.55 inc VAT
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About This Item
- Full Tower ATX, EATX, SSI CEB, SSI EEB chassis
- 5 x 2.5″ and 4 x 3.5″ drive bays with anti-dust filter
- 49.5 cm GPU and 19 cm CPU cooler clearance
- Front up to 420 mm and top up to 360 mm radiator support
- Pre-installed 3x 140 mm front and 1x 140 mm rear fans
- Tempered glass side window with 2x USB 3.2 and 1x USB-C
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Antec 900 | Full Tower Chassis
The Antec 900 Full Tower Black is a modern interpretation of a high-airflow classic. It is designed for UK professionals building AI workstations, high-capacity storage arrays, or 8K gaming rigs. This chassis supports demanding multi-GPU configurations and extensive cooling setups.
Modern Legacy, High-Airflow Build
The original Antec Nine Hundred was famous for aggressive cooling. This new model retains that open design ethos. It is constructed from a mix of aluminium, steel, plastic, and tempered glass. The layout prioritises direct airflow to critical components.
AI-Ready GPU & Accelerator Support
This chassis is engineered for heavy compute tasks. It supports full-length, triple-slot GPUs. You can install professional accelerator cards or AI-optimised GPUs. The internal clearance fits graphics cards up to 495 mm long and 160 mm thick.
Expansive Storage for Data Work
The “900” name refers to its storage potential. It offers up to nine total drive bays. You get five 2.5″ bays and four 3.5″ bays. This is ideal for RAID arrays or large AI datasets.
Advanced Liquid Cooling Support
The case supports extensive radiator mounting. Front radiators fit up to 420 mm. Top radiators fit up to 360 mm. Both mounts support radiators up to 52 mm thick. This allows for serious thermal management.
Pre-Installed Fan Configuration
The chassis comes with fans pre-installed.
- Front: 3 x 140 mm fans.
- Rear: 1 x 140 mm fan.The design supports additional fans at the top (up to 3x) for exhaust.
Slim Specifications
| Metric | Spec. |
|---|---|
| Form Factor | Full Tower |
| Max GPU Length | 495 mm |
| Max CPU Cooler | 190 mm |
| Front Radiator | Up to 420 mm |
| Drive Bays | 5x 2.5″, 4x 3.5″ |
| I/O Ports | 2x USB-A, 1x USB-C, Audio Combo |
Box contents
- Antec 900 Full Tower Black Chassis
- 3 x 140 mm Front Fans (Pre-installed)
- 1 x 140 mm Rear Fan (Pre-installed)
- Internal mounting hardware (Screws, Standoffs)
- Note: Power supply, motherboard, and storage drives are not included.
Check before you buy
- Confirm your motherboard size compatibility (ATX, EATX, SSI CEB, SSI EEB).
- Verify your CPU cooler height does not exceed 190 mm.
- Check your PSU length is under 230 mm to ensure a clean fit.
- Confirm warranty region and UKCA/CE marking status for your specific distributor SKU.
Frequently Asked Questions
Q: Does the Antec 900 include a power supply?
A: No, the Antec 900 Full Tower Black does not include a power supply. You must purchase one separately.
Q: What is the maximum radiator thickness supported?
A: Front radiators support up to 52 mm thickness. Top radiators also support up to 52 mm thickness.
Q: Are the side panels tempered glass?
A: Yes, the case features tempered glass panels to view internal components.
Q: Can I install a 200 mm fan?
A: Yes, the front fans supported diameters include 200 mm, 140 mm, and 120 mm.
The Consultant’s verdict & warranty
Buy the Antec 900 if you are building a high-airflow workstation or a multi-GPU AI rig. It offers exceptional space for long graphics cards and liquid cooling radiators. It is not a compact case; ensure you have the physical space for it. Covered by the standard Manufacturer Warranty.
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