Black Box Universal Rail Kit for Rackmounting 1U

The Black Box URK1U is a rail kit that lets you mount 1U equipment securely in any standard 19-inch rack or cabinet. Because the rails adjust to different depths, you can fit gear from slim network switches to full-depth servers without reaching for extra hardware.

Each pair of rails supports up to 55 lbs (25 kg), giving you enough strength for most rack-mountable devices that a small or midsize IT room handles every day. Once installed, the kit keeps equipment level and prevents sag, so airflow stays consistent and cables remain neatly aligned.

Technicians will appreciate that the rails ship as a simple, two-piece set. You slide the inner and outer sections to the depth you need, tighten a few screws, and the rack is ready. This quick fit makes the URK1U a practical choice for data centers that swap hardware often, branch offices where time on site is limited, or lab environments that reconfigure racks for testing.

If you need a solid platform for routers, small appliances, or gear that lacks rack ears, you can add the optional URKS shelf and fasten it directly to these rails. The same universal approach is available in 2U and 3U versions, so an entire rack can share one mounting system.

• Fits any standard 19-inch rack or cabinet
• Adjustable depth rails hold up to 55 lbs (25 kg)
• Installs quickly with only common tools
• Optional URKS shelf creates extra mounting options
• Also offered in 2U and 3U models for taller devices