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12U 4-Post Flex Depth Rack 21" x 36"D, M6 Square Holes 360lbs

A portable, open-design rack that's great for frequent moves, adds, and changes.


12 In Stock
Same Day Shipping (before 5PM ET)
Lifetime Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • Open design allows access to all sides of mounted equipment for everyday maintenance and troubleshooting.
  • Weight capacity of 300 pounds.
  • Constructed of
    14-gauge steel.
  • Only 12U high. Low-profile 23" height makes it ideal for racking and storing equipment underneath a shelf or desk.
  • Guaranteed for life!


  • Easy to assemble with front and rear frames, front-to-rear posts, and EIA rails. Hex bolts and nuts are included.
  • Adjust EIA standard rails to accommodate different sizes of hardware.
  • M6 mounting.
  • Black finish.
  • Four 2" swivel casters make it easy to move.

  • Tech Specs

    cUL 0
    UL 0
    Dimensions 23"H x 21"W x 36"D

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.



    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The 12U 4-Post Flex Rack 21" x 36"D, M6 Square Holes 360lbs comes with a standard Lifetime Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.