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
Black mid-tower ATX case with mesh front, walnut wood accents and tempered glass side panel

Antec

Antec FLUX REAR Mid-Tower ATX PC Case

SKU CH-QPN0-VR9KD

Mid-tower ATX case with front PSU chamber, five pre-installed PWM fans, 360 mm top radiator support, back-connect motherboard compatibility and wood accents

  • TypeATX Mid Tower
  • ColorBlack
  • Case MaterialSteel / Plastic
  • Motherboard CompatibilityATX / E-ATX / ITX / Micro ATX
  • Side PanelTempered Glass Side Panel
  • Dust FiltersBottom / Side / Top

Option FLUX REAR

  • Front-mounted PSU chamber directs cool air straight to the GPU
  • Five pre-installed PWM fans deliver balanced airflow out of the box
  • Top panel accepts 360 mm radiator for high-capacity liquid cooling
  • Compatible with back-connect motherboards for cleaner cable routing
  • Tool-free tempered glass and steel panels simplify build access

Engineered for Airflow and Aesthetics

The Antec FLUX REAR is a mid-tower ATX case built around the F-LUX Platform with a front-mounted PSU chamber to improve GPU thermals. A large mesh front panel and support for up to eight fans create strong intake and exhaust paths. Premium walnut wood-style accents and a 4mm tempered glass side panel give the chassis a distinctive, natural look.

Suits Clean Builds with Back-Connect Boards

Builders using back-connect motherboards will appreciate the reversed rear I/O layout and 37mm of cable management space behind the motherboard tray. Tool-free side panels simplify assembly and future upgrades. The front PSU chamber shifts the power supply away from the graphics card, so this layout works best when that thermal separation matters.

Five PWM Fans and a GPU Bracket Included

Two 140mm ARGB PWM fans at the front, two 120mm PWM reverse fans on the PSU shroud and one 140mm ARGB PWM fan at the rear are pre-installed for immediate airflow. A built-in GPU support bracket adds stability for heavy cards and a 13A extension cable ensures reliable power delivery to high-wattage units.

Highlights

  • Front-mounted PSU chamber directs cool air straight to the GPU
  • Five pre-installed PWM fans deliver balanced airflow out of the box
  • Top panel accepts 360 mm radiator for high-capacity liquid cooling
  • Compatible with back-connect motherboards for cleaner cable routing
  • Tool-free tempered glass and steel panels simplify build access

Specifications

ModelFLUX REAR
TypeATX Mid Tower
ColorBlack
Case MaterialSteel / Plastic
Motherboard CompatibilityATX / E-ATX / ITX / Micro ATX
Side PanelTempered Glass Side Panel
Dust FiltersBottom / Side / Top
Internal 3.5" Drive Bays1
Internal 2.5" Drive Bays2
Expansion Slots7
Fan OptionsFront 3 x 140 / 3 x 120mm
Top 2 x 140 / 3 x 120mm
Power Supply Shroud 2 x 140 / 2 x 120mm
Rear 1 x 140 / 1 x 120mm
Pre-installed FansFront - 2 x 140mm / Middle - 2 x 120mm / Rear - 1 x 140mm
Radiator OptionsFront 120 / 140 / 240 / 280 / 360mm
Top 120 / 140 / 240 / 280 / 360mm(Maximum RAM height: 52mm)
Rear 120 / 140mm
Max GPU Length420 mm
Max CPU Cooler Height185 mm
Max PSU Length240 mm
Shipping weight9.80 kg
Package size533 × 508 × 318 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What motherboard form factors does the Antec FLUX REAR case support?

The case fits ATX, E-ATX, Micro ATX and ITX boards, so your existing board will mount as long as it matches one of those sizes.

Can I keep my current 360 mm liquid cooler when moving to this case?

Yes, the top panel accepts radiators up to 360 mm, and the front also supports 360 mm, so a 360 mm AIO will fit in either location.

How do I verify the pre-installed fans are running under PWM control after assembly?

Connect the fan headers to the motherboard, then use the BIOS or fan-utility software to confirm each fan reports a PWM duty cycle and spins between its minimum and maximum RPM.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.