We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Antec 900 full tower chassis with four tempered glass panels and front I/O cluster

Antec

Antec 900 Full Tower PC Case

SKU CH-H9Q3-XWVNQ MPN Antec 900

Full-tower ATX chassis supporting E-ATX and Threadripper boards with six PWM fans pre-installed and 420 mm front radiator clearance

  • Max graphics card length495 mm
  • Housing materialAluminum / Steel / Plastic / Tempered Glass
  • Supported motherboard sizesATX, E-ATX, SS-CEB,SSI-EEB , Threadripper, (Supports Back-Co
  • Side panel type4 x Sides Tempered Glass Panel
  • Dust filteringBottom / Front / Top
  • 3.5-inch internal bays4
  • Full-tower space for E-ATX and Threadripper boards with back-connect support
  • Six pre-installed PWM fans create a high-volume airflow path for GPU stability
  • Front radiator support up to 420 mm with 52 mm thickness allowance
  • Nine drive bays for large datasets plus USB Type-C 10 Gbps front port
  • Tool-free 4 mm tempered glass panels and dust filters on front, top and bottom

AI Workstation Chassis

The Antec 900 is a full tower case built for AI workstations and high-end gaming systems. It supports E-ATX, SSI-EEB, SS-CEB and Threadripper motherboards, including back-connect designs. The interior fits dual graphics cards up to 495 mm long and 160 mm thick. Four tempered glass panels give full view of the build.

Upgrade From Mid Tower

Builders moving from a standard mid tower gain the 420 mm front radiator clearance and the 9 drive bays needed for large datasets. The jump is worth it when a 360 mm radiator no longer fits or when a second GPU is required for compute workloads. Six pre-installed PWM fans — three 140 mm front, two 120 mm reverse on the PSU shroud and one 140 mm rear — establish a high-volume airflow path from day one.

Front Panel And Radiator Limits

The front I/O provides two USB 3.0 ports, one Type-C 10 Gbps port and a headset jack. Radiator support tops out at 420 mm in the front with 52 mm thickness and 360 mm at the top with the same thickness. CPU cooler height is limited to 190 mm and power supply length to 230 mm.

How it compares

Measured against everything we stock in Tower & Desktop PC Cases, at today’s prices. Recalculated every night.

Price $247.99
Pricier than about 81% of the 1,468 comparable items (median $100.99).
Max graphics card length 495 mm
Higher than about 95% of the 894 comparable items (median 400 mm).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameAntec
Model nameAntec 900
Product typeATX Full Tower
Storage
3.5-inch internal bays4
2.5-inch internal bays5
Ports & slots
Expansion card slots8
Front panel portsPower, USB 3.0 × 2, Type-C 10 Gbit/s x 1, Headphone/Mic Combo Jack
Size & build
Max graphics card length495 mm
Housing materialAluminum / Steel / Plastic / Tempered Glass
Side panel type4 x Sides Tempered Glass Panel
Dust filteringBottom / Front / Top
Fan mounting optionsFront: 2 × 200 mm / 3 × 140 mm / 3 × 120 mm
Top: 2 × 140 mm / 3 × 120 mm
Power Supply Shroud: 2 × 120 mm
Rear: 1 × 120 mm / 1 × 140 mm
Included Fan(s): 3 × 140 mm at the front + 2 × 120 mm reverse fans at the PSU shroud + 1 × 140 mm at the rear
Product dimensions547 × 250 × 622 mm
Shipping weight17.00 kg
Package size630 × 560 × 260 mm
Compatibility
Supported motherboard sizesATX, E-ATX, SS-CEB,SSI-EEB , Threadripper, (Supports Back-Connect Motherboards)
Radiator supportFront: 120 / 140 / 240 / 280 / 360 / 420 mm (52 mm thickness)
Top: 120 / 140 / 240 / 280 / 360 mm (52 mm thickness)
CPU cooler height limit190 mm
PSU length limit230 mm

Questions about this item

What clearance does the Antec 900 need for a 420 mm front radiator?

The front supports radiators up to 420 mm long with a maximum thickness of 52 mm, so allow at least that depth behind the three 140 mm front fans.

How are the four tempered glass panels removed, and which step do builders often miss?

All four 4 mm glass panels lift off tool-free; the step many miss is releasing the rear retention clips before pulling the panel away from the frame.

Which dust filters need regular cleaning on the Antec 900?

Clean the bottom, front and top magnetic filters every few months; they slide out without tools and can be rinsed and reused.

More in Tower & Desktop PC Cases

Similar items