4 Post Open Frame Rack 25U

25U SmartRack 4-Post Open Frame Rack - Organize and Secure Network Rack Equipment

Model Number: SR4POST25

  • 25U 4-post open frame rack
  • Black steel with square, numbered mounting holes
  • Toolless button holes to accept PDUs or cable managers
(2 Reviews)
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SmartRack 4-post open frame racks are ideal for cost conscious 19 inch rack mount applications. Multiple units can be bolted together side by side.

Key Features

  • Supports 1000lbs of rackmount equipment
  • Adjustable mounting depth (22 to 39 inches)
  • Textured powder coat finish
  • Heavy-duty cold-rolled steel construction
  • Numbered mounting positions
  • Bolt down provisions
  • Self squaring design
  • Black finish
  • Easy assembly

Package Includes

  • SR4POST25
  • Installation hardware
  • 32x pieces of M6 cage nuts, screws, and washers for equipment mounting
  • Cable management hooks
  • Owner's manual with warranty information


Installed Whole System Maximum Rack Depth (in.) 39.3
Installed Whole System Maximum Rack Depth (cm) 99.82
Installed Whole System Minimum Rack Depth (in.) 22
Installed Whole System Minimum Rack Depth (cm) 55.88
Rack Height (U Spaces) 25
Shipping Dimensions (hwd / in.) 4.13 x 5.71 x 56.5
Shipping Dimensions (hwd / cm) 10.5 x 14.5 x 143.51
Shipping Weight (lbs.) 46
Shipping Weight (kg) 20.7
Unit Dimensions (hwd / in.) 49.3 x 20.2 x 22-39.3
Unit Dimensions (hwd / cm) 125.2 x 51.3 x 55.9~99.8 (depth adjustable)
Unit Weight (lbs.) 45
Unit Weight (kg) 20.25
Unit Dimensions (cm) 125.2 x 51.31 x 55.88~99.1 (depth adjustable)
Color Black
Weight Capacity - Stationary (lbs.) 1000
Weight Capacity - Stationary (kg) 453.6
Hinged (Swings Away from Wall Bracket) No


Grounding Lug Included screws, nuts, and washers secure user-supplied grounding wire to Front or Back frames
Seismic Rack No


NOM (Mexico) Tested to NOM (Mexico)
Approvals EIA-310-D, IEC 60297-3-100, DIN 41494, RoHS


Product Warranty Period (Worldwide) 5-year limited warranty


by PowerReviews
Tripp Lite25U 4-Post SmartRack Open Frame Rack - Organize and Secure Network Rack Equipment

(based on 2 reviews)

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Reviewed by 2 customers

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Versatile Rack for limited spaces

Comments about Tripp Lite 25U 4-Post SmartRack Open Frame Rack - Organize and Secure Network Rack Equipment:

I needed a rack for my home office but didn't have the space for a full 42U height rack. I looked at serveral options but this one stood out for its adjustable depth, optional casters and TrippLite's reputation for quality.

This rack certainly did not disappoint us in any way. It was easy to assemble, easy to adjust to the depth we wanted and most important was easy to move even when loaded. We keep it in a corner due to space concerns so the ability to easily pull it forward to get to the back of the servers was very important for us.

All our equipment went in easily and the rack was adjusted to the depth of our longest server. This rack with servers and all network equipment is about the same depth as a 25" desk so it flows well with the rest of the office.

The clearly printed U numbers on the front and back made it really easy to line equipment. There are plenty of cage nuts included as well but most of our equipment rails just snapped in.

Did I mention how overbuilt this thing is. The nuts and bolts are huge! There is no wobble and I am sure it could easily handle much more than the rated weight.

We are very happy with this rack and when we expand we are definitely going with another one of these.

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Great rack


from Undisclosed

Comments about Tripp Lite 25U 4-Post SmartRack Open Frame Rack - Organize and Secure Network Rack Equipment:

Easy to assemble - a great little rack that is currently holding two servers, a switch, a keyboard and monitor, and a small laserjet printer. The additional trays for the keyboard, monitor, and printer were easy to find.

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