B stock is fully functional but may have minor blemishes, though often looks new. May not ship in retail box. If the original did not come with a power supply, neither does the B stock. All B Stock comes with a limited 90 day warranty only.

Quiet computing comes to rackmounts

Antec's Studio Series rackmount enclosures offer rock-solid rackmount chassis ruggedness with Antec's famous Quiet Computing. Available in 3U and 4U sizes, these cases feature 92mm and 120mm fans for cool, quiet operation. Cooling is further enhanced by a unique segregated air-flow design.

Features:

Drive Bays:
  - 2 external 5.25” bay
  - 2 external, 4 internal 3.5” bay
Rubber grommets to absorb hard drive vibration.
Power supply is isolated from the system to keep the system cooler.
Power supply not included
Front ports:
  - 2 x USB2.0,
  - 1 x Firewire (IEEE1394)
Cooling system:
  - 1 x 120mm TriCool
  - 1 x 92mm TriCool
Unit Dimensions:
  - 7”(H) x 17”(W) x 20.5”(D)
  - 17.78cm(H) x 43.18cm(W) x 52.07cm(D)
Package dimensions:
  - 12.1” (H) x 26.3” (W) x 22.5” (D)
  - 30.73cm (H) x 66.80cm (W) x 57.15cm (D)
Weight:
  - Net:34.60lb / 15.69kg
  - Gross: 41.00lb / 18.60kg