Antec 300 Series Case. No PSU View larger

Antec 300 Series Case. No PSU


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

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 Antec Three Hundred Black Steel ATX Mid Tower Computer Case
Antec combines size, quality, features and low price to deliver the ultimate gaming case. The smallest of Antec’s "Hundred" series designed for the do-it-yourself gamer, it is equipped to deal with the increased heat output of high-performance systems as well as providing a flexible design to best suit your needs. Its overall matte-black finish shows that you – and your system – mean business.

The front panel includes a pair of USB 2.0 inputs as well as jacks for a headphone and microphone. The front bezel is perforated for maximum air intake and it has a washable filter to reduce dust within the system. Inside, are a total of nine drive bays – six 3.5in. internal HDD’s and a trio of 5.25in. external drives. Seven expansion card slots let you load up on graphic and other options up to – and including – a full height ATX motherboard. A rear-mounted 120mm TriCool fan as well as a top-mounted 140mm TriCool fan – both with three-speed switch control – draw air through the case.

In addition, there's space for an additional pair of 120mm fans behind the front bezel to cool the HDD’s as well as the option to mount a third 120mm fan on the side of the case to cool the GPU. If you’d rather put your money into what goes inside the case rather than the case itself, the Antec Three Hundred is for you.
  • Versatile case with six hard-drive bays, three optical-drive bays, one internal bottom-mounted 2.5in. SSD drive bay, and seven expansion slots
  • Three-speed rear and top fans keep system cool
  • CPU cutout allows for easy installation of CPU coolers
  • Washable air filter reduces dust buildup
  • Perforated front bezel for maximum air intake
  • Top-mounted audio in/out and USB ports for easy access
  • Backed by a three-year limited warranty

Filtered front panel takes in air efficiently and prevents dust buildup


Advanced cooling system utilizes two fans to keep your system nice and cool


Front-mounted USB and HD audio ports for maximum convenience