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Part # : MFOFSR422U
Manufacturer SKU : OFSR-4-22U
Brand : Mainframe
Warranty : 3-year Lin Haw warranty

The Mainframe OFSR-4-22

Is an adjustable open frame knockdown rack which conveniently comes with 4 caster wheels for ease and mobility. Ideal for rack mount servers, switches, networking equipment and cabinet consoles. Suitable for equipment where security at the rack level is not required.


  • Supplied as 1 flat pack boxes for easy mobility

  • Use with 19-inch rack mountable equipment

  • No door or side panels for better air flow

  • Aluminum profiled bar, light weight and easy to ship

  • Complies with ANS/EIA RS-310-D, IEC297-2, DIN41491, PART1, DIN41494 Standard

  • 3 year LH warranty

  • Vertical cable tray pre-installed

    • 24.6" 625 mm usable depth with cable tray

    • 28.5" 724 mm usable depth without cable tray

    • Note: When using shelves or gear deeper than 625mm the rear cable management tray must be removed and the rear rails installed in position 724mm. 

  • Casters included 


  • Material:

    • Frame: Aluminum

    • Others: SPCC cold rolled steel

  • Thickness:

    • Mounting Profile: 20mm

    • Mouniting Angle: 1.5mm

    • Others: 1.2mm

  • Surface Finishing

    • Black Powder Coating

Capacity (U)Dimensions WxDxH (mm)
Dimensions WxDxH (in)
Static Loading Capacity (kg)
Static Loading Capacity (lbs)
22599 x 900 x 1135
23.58 x 35.43 x 44.69

Package Contents:

  •  4 x Baying Plates with 8 x M6 Countersunk Head Screw

  • 50 x 10-32 Screw and Cage Nut

  • 16 x M6 Countersunk Head Screw

  • 8 x M5 Self-tapping Screw

  • 4 x Leveling Feet

  • 4 x Pre-installed Castor

Shipping Information:

Dimensions WxDxH (mm)
Dimensions WxDxH (in)
Weight (kg)Weight (lbs)Volume (CBM)
250 x 940 x 10909.84 x 37.01 x 42.9134.575.90.26