Antec 900 Full Tower Case Black

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

Package 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.

Things to check first

• 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

Summary & 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 applicable manufacturer warranty.