Rack Shelves & Drawers

Need to learn what a Rack Unit is? Check out our guide below!

Keep Your Peripheral Rack Items Organized and Secure

There's a lot more to a network set-up than just the actual rack-mounted components. Additional items like monitors, modems, routers, backup units, and more might require a secure storage spot in your enclosure, and that's where a rackmount shelf or drawer can be a convenient solution.

Sliding shelfs allow you to stow items out of the way while still having a way to conveniently access them when needed, and lockboxes and drawers can provide extra security for loose items. Keyboard shelve allow you to integrate your workstation directly into your rack or cabinet, saving space, which is always a precious commodity in a server room or data center environment.

We have a wide range of computer shelving options and more to accommodate your specific setup needs. Check out all of our durable rack shelves and additional accessories help organize your peripherals and maximize your space usage.

What is a "U" or Rack Unit?


Rack UnitA rack unit is a unit of measure used to describe the height of a server, network switch or other similar device mounted in a 19-inch rack or a 23-inch rack. One rack unit is 44.45 mm (1.75 in) high.

One rack unit is commonly designated as "1U"; similarly, 2 rack units are "2U" and so on. The size of a piece of rack mounted equipment is usually described as a number in "U". One rack unit is also sometimes referred to as "1RU".

Professional audio and video gear often comes with rack mount options and use the same measurement specifications.

Half-rack units typically describe units that fit in a certain number of RU, but occupy only half the width of the rack (9.5 inches / 241 mm). For example, a "4U half-rack" DVCAM deck would occupy 4U space (4 × 1.75 inches) height × 9.5 inches width. In theory, two half-rack decks could occupy the 4U space.

Coincidentally, a rack unit is equal to a vershok, which is an obsolete Russian length unit.

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As in 1U, 2U, 4U etc

A "Rack Unit" or "U" is an Electronic Industries Alliance or more commonly "EIA" standard measuring unit for rack mount type equipment. This term has become more prevalent in recent times due to the proliferation of rack mount products showing up in a wide range of commercial, industrial and military markets. A "Rack Unit" is equal to 1.75" in height. To calculate the internal useable space of a rack enclosure you would simply multiply the total amount of Rack Units by 1.75". For example, a 44U rack enclosure would have 77" of internal usable space (44 x 1.75).

Stealth manufactures computers and peripherals that are designed to fit into a standard EIA size rack enclosures. Stealth's Rackmount PCs, LCD Monitors and Keyboards are available in many sizes and configurations. The slim space saving series rack products are available in 1U (1.75") and 2U (3.5") in overall height. Since rack space is at a premium these slim products represent significant cost savings to the end user. Standard rackmount products are available in 1U, 2U, 4U, 5U and 6U configurations.


If you need help selecting a solution for your cable management needs, feel free to call our friendly and knowledgeable staff at 1-866-222-0030.

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