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51U 2-Post Rack, 20.3" x 40"D 12-24 EIA Holes, 1000lbs

A tough rack with a high-grade finish.


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

*Required field

Product Features

  • Sturdy, high-quality aluminum rack supports up to 750 pounds.
  • Guaranteed for life!


  • Features standard 19" rails with prethreaded 12-24 EIA holes.
  • Constructed of high-grade 6061-T6 aluminum.
  • Self-squaring and self-supporting.
  • Has 3" x 1 1/4" channels.
  • Features a 5/8", 5/8", 1/2" universal mounting hole pattern.
  • Includes 24 cross-recessed black panel mounting screws, 12-24 x 1/2" long.
  • Add Premier Cable Managers (RM122–RM125, RM128–RM133) for additional cable management.

    This EIA standard 19" distribution rack is constructed of high-strength aluminum for lightweight strength—the rack supports up to 1000 pounds—and has excellent grounding characteristics.

    The rack is easy to assemble, and it's self-squaring and self-supporting.

    And to accommodate your non-rackmountable equipment, shelves are available for our Premier Aluminum Distribution Racks. Like our racks, these shelves are sturdily constructed to withstand hard use. Each single shelf supports up to 50 pounds (22.7 kg); each double shelf supports up to 125 pounds (56.7 kg). Choose from single- or double-sided shelves with or without vents.

    NOTE: Also available in mill finish aluminum and additional heights.

    This product works with:
  • Premier Cable Managers (RM122–RM125, RM128–RM131)
  • Premier Cable Manager Hinged Plexi Doors (RM132–RM133)
  • Solid Premier Rack Shelves (RM135–RM136)
  • Vented Premier Rack Shelves (RM137–RM138)
  • Elite™ Horizontal Cable Managers (ECMH1US, etc.)
  • Elite Horizontal Cable Manager Tie-Down Bar (ECMTDB)
  • Elite Vertical Cable Managers (ECMV45U6, etc.)
  • Elite Vertical Cable Manager Rear Post & Gate Kits (ECMVPG6)
  • Questions? Contact our FREE Tech Support.

    Tech Specs

    cUL 0
    UL 0
    Base Depth 14" (35.6 cm)
    Exterior Width 20.3" (48.3 cm)
    Finish/Color Black
    Hole-to-Hole Centers 18.31" (46.51 cm)
    Interior Width 17.812" (45.01 cm)
    Overall Height 96" (51U)
    Weight 27.5 lb. (12.5 kg)
    This product works with:
    Also available in mill finish aluminum and additional heights.

    * 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 51U 2-Post Rack, 20.3" x 40"D 12-24 EIA Holes, 1000lbs 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.