I have Dell Poweredge R710 Railed, APC SMT1500 Railed UPS in my 22U rack. This shelf slides out and fits my size of this shelf very well. Some clearance from the front and back corners of the rack, but it's good for cables. Ideal for 19 inches. I wouldn't go deep into the settings and then download it. Well made, easy to assemble and install. A good thing.
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