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Antec Three Hundred Illusion Black Steel ATX Mid Tower Computer Case

  • Steel ATX Mid Tower
  • USB 2.0 / Audio Front Ports
  • 3 External 5.25" Drive Bays
  • 6 Internal 3.5" Drive Bays

Three Hundred Illusion the Versatile Case

The Essentially Cool and Quiet Case

Impressively spacious and unbeatably reliable, the Antec Three Hundred is an unbeatable enclosure. Despite its eminently portable frame, the Three Hundred has enough room for an NVIDIA 8800 series graphics card, as well as six hard drives and a standardATX motherboard. A cable management compartment keeps your system organized and the airflow unobstructed. A 120mm rear fan and 140mm top fan ensure that the case runs cool even when playing the most demanding games, while the sleek black finish gives it an extra stylish edge.


Three Hundred Illusion Three Hundred Illusion
Three Hundred Illusion


No Power Supply included:

To optimize performance of your Three Hundred, your choice of power supply is crucial. Antec strongly recommends choosing from our NeoPower or TruePower series.

Nine (9) Drive Bays:
  • External 3 x 5.25"
  • Internal 6 x 3.5" for HDD

Cooling System:
  • 2 Front 120 x 25mm TriCool™ Blue LED Fan with 3-speed switch control.
  • 1 Rear 120 x 25mm TriCool™ Fan with 3-speed switch control.
  • 1 Top 140 x 25mm TriCooltrade; Blue LED Fan with 3-speed switch
  • 2 Front (optional) 120mm fans to cool the hard drives
  • 1 Side (Optional) 120 x 25mm Fan to cool graphic cards

Washable air filters reduce dust build up in your system, keeping your system cooler.
Perforated front bezel for maximum air intake
Maximum video card size: 12.5" (318mm) (Note: some video cards may block access to the adjacent hard drive bay) Compatible Motherboards: Mini-ITX, microATX, Standard ATX

Seven (7) Expansion Slots

Top mounted I/O ports for easy access

  • 2 x USB 2.0
  • HDA & AC'97 Audio In and Out

Unit Dimensions (H x D x W):
  • 18 x 18.3 x 8.1"
  • (45.8 x 46.5 x 20.5cm)
  • Net: 15.9lbs (7.2kg)
  • Gross: 18.7lbs (8.5kg)
Three Hundred Illusion

Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Return Policies