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4-Post Rack, 42U  

Exceptional stability plus great Black Box quality—all at an economical price.


LIFETIME DoubleDiamond™ Warranty (Standard)

Product Highlights

  • Weight capacity is 2000 pounds (750 pounds when on casters).
  • All four uprights have RMU labels.
  • Constructed of 12-gauge cold-rolled steel.
  • Four-post stability.
  • Open design provides maximum ventilation.
  • M6 mounting.
  • Shipped unassembled.
  • Assembly hardware and mounting hardware are included.
  • EIA 310-D compliant.
  • Also available in 15U, 22U, 37U, 51U, and 58U.
  • Guaranteed for life!

  • Further Details

    With solid four-post construction in a standard rack size at a very economical price, 4-Post Racks from Black Box are data center staples!

    Our 4-Post Rack combines the stability of a cabinet with the airflow of an open rack. It's tough, too—its 12-gauge steel, quality construction supports more than a ton of equipment!

    The rack ships unassembled for easy transport to your site. Assembly is simple with the included hardware. You can install it as a standalone rack or bay it. To bay the rack, use our Baying Kit (RM7002-R2).

    The rack conforms to the EIA standard for 19" equipment mounting and features universal M6 mounting holes. It comes with 50 M6 cage nuts and screws for mounting.

    What's included:
  • Unassembled 4-Post Rack
  • (4) 80.5"H universal cage nut uprights
  • (4) 23"D horizontal depth brackets
  • (4) top/bottom horizontal width brackets
  • (16) 3/8"–16 x 3/4" flathead screws
  • (16) 1/2"–13 x 1" hex head bolts
  • (16) 1/2" x 13 hex nuts
  • (16) 1/2" split-locking washers
  • (50) M6 cage nuts
  • (50) M6 screws
  • Manual

  • Rack Units 42U
    Size Exterior: 80.5"H x 20.6"W x 29"D (204.5 x 52.3 x 73.7 cm);
    Interior: 19"W (48.3 cm)
    Weight 80 lb. (36.3 kg)
    Weight Capacity Up to 2200 lb. (998 kg)
    This product works with:
  • Fixed Solid Shelf for 4-Post Racks (RM7010)
  • 4-Post Rack Baying Kit (RM7002-R2)
  • 4-Post Rack Caster Set (RM7006-R2)
  • 4-Post Rack Flat Top (RM7007-R2)
  • Questions? Contact our FREE Tech Support.

    NOTE: Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 1-800-316-7107.


    • 4-Post Rack User Manual
      User Manual for the RM7000A-R3, RM7001A-R3, RM7002-R2, RM7003A-R3, RM7004A-R3, RM7005A-R3, RM7006-R2, RM7007-R2, RM7008A-R3, and RM7010 (Version 1)

    Black Box Explains

    Double Diamond Warranty
    LIFETIME DoubleDiamond™ Warranty (Standard)

    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 4-Post Rack, 42U comes with a standard Lifetime warranty 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.

    Product SKU Price Quantity
    4-Post Rack, 22U RM7001A-R3 $422.15
    4-Post Rack, 15U RM7003A-R3 $381.75
    4-Post Rack, 37U RM7008A-R3 $462.55
    4-Post Rack, 51U RM7004A-R2 $490.85
    4-Post Rack, 58U RM7005A-R2 $531.25
    You can find this product in the following subcategory(s)

    Add to Cart

    Price: $484.75

    Quantity Available: 9




    Shipping Info

    In Stock - orders received before 5PM ET ship same day

    Weight: 79 lbs.
    HxWxD: 4 x 8 x 82.5 in.

    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.

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