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Rack unit - Wikipedia
Demystifying Server Rack Units: How to Measure Up - Horizon Electronics
19-inch rack - Wikipedia
Amazon.com: QiaoYoubang 5 Pack of 1U Blank Panel - Metal Rack Mount Filler Panel for 19in Server Rack Cabinet or Enclosure, Black (1UBP5PC) : Musical Instruments
Rack unit - Wikipedia
Server Rack Sizes: Understanding the Differences - RackSolutions
Server Rack Sizes: Understanding the Differences - RackSolutions
Rack units
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Rack Mount Bracket 3 Unit size 420 mm width for VM-2120 / 2240 , MB 36 , TOA
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