Startechcom server rack cabinet shelves startechcom cabshelf1u this black 1u universal fixed server rack cabinet shelf from startechcom lets you add a compact fixed storage shelf to any standard 19 inch server rack or cabinet with front mount options constructed using spcc commercial grade cold rolled steel this durable fixed rack shelf can hold up to 15kg of equipment a perfect solution for storing small form non rackmount equipment tools peripherals or accessories in your rack it