Antec 900 Full Tower Black

Edge AI Workstation & 8K Gaming Full-Tower Chassis

Description

The Antec Nine Hundred was one of the most recognizable high-airflow cases of its time-known for its open design, aggressive cooling, and expandability that let builders push hardware harder than ever before.

The new Antec 900 is a modern interpretation of that legacy.

AI-OPTIMIZED GPU SUPPORT
Built to house multi-GPU / accelerator configurations, including Al-optimized GPUs like NVIDIA RTX 6000 Ada, RTX A6000, and comparable compute cards.

GPU & ACCELERATOR SUPPORT
Designed around professional accelerator cards and full-length, triple-slot GPUs used in AI, compute, and 8K-capable gaming.

SUPPORTS GPUS UP TO 495 MM LONG AND UP TO 160 MM THICK
Spacious interior accommodates multi-accelerator layouts, blower-style compute cards, or mixed GPU + add-in card setups.

STORAGE &
DATA READINESS
The "900" isn't just a name-it's built in. The 9 total drive bays nod directly to the original's storage flexibility, now reimagined for Al datasets, scratch disks, project libraries, and RAID.

UP TO 9 TOTAL DRIVE BAYS
5 x 2.5" and 4 3.5" (or convertible for more 2.5" )

POWERFUL AIRFLOW PATH DESIGN
Features ultra case structure design for excellent airflow,delivering enhanced GPU cooling performance.

INCLUDED FANS FOR ENHANCED COOLING PERFORMANCE
Equipped with 6 high-performance pre-installed fans, the 900 further optimizes its airflow design to deliver more stable and superior overall cooling efficiency.

SERIOUS COOLING HEADROOM
Radiator Support: Front up to 420 mm (<52 mm thickness). Top up to 360 mm (<52 mm thickness).

Specifications

Technical details
Number of 3.5" bays	4
Number of 2.5" bays	5
Supported motherboard form factors	ATX, EATX, SSI CEB, SSI EEB
Supported HDD sizes	2.5,3.5"
Suitable for	Gaming
Side window	Yes
Product colour	Black
Number of expansion slots	8
Maximum CPU cooler height	19 cm
Maximum graphics card length	49.5 cm
Maximum PSU length	23 cm
Type	PC
Form factor	Full Tower
Material
Material	Aluminium, Steel, Plastic, Glass
Ergonomics
Cable management	Yes
On/off button	Yes
Design
Anti-dust filter	Yes
Material	Aluminium, Steel, Plastic, Glass
Number of 3.5" bays	4
Number of 2.5" bays	5
Supported motherboard form factors	ATX, EATX, SSI CEB, SSI EEB
Suitable for	Gaming
Side window	Yes
Cable management	Yes
Product colour	Black
Number of expansion slots	8
Maximum CPU cooler height	19 cm
Maximum graphics card length	49.5 cm
Maximum PSU length	23 cm
Type	PC
Form factor	Full Tower
On/off button	Yes
Tempered glass panel(s)	Yes
Power supply
Power supply included	No
Ports & interfaces
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Combo headphone/mic port	Yes
USB Type-C ports quantity	1
Cooling
Front radiator sizes supported	120,140,240,280,360,420 mm
Top radiator sizes supported	120,140,240,280,360 mm
Front fans installed	3x 140 mm
Number of front fans supported (max)	3
Front fans diameters supported	200,140,120 mm
Rear fans installed	1x 140 mm
Number of rear fans supported (max)	1
Rear fans diameters supported	120,140 mm
Number of top fans supported (max)	3
Top fans diameters supported	140,120 mm
Bottom fans installed	2x 120 mm
Storage
Supported HDD sizes	2.5,3.5"
Weight & dimensions
Width	250 mm
Depth	547 mm
Height	622 mm