The needs of a Server Room can vary greatly. Workspaces need high quality racks that save space and are customizable to meet their individual needs. StarTech.com's ADJSHELF shelving unit is an essential accessory to effectively organize your mission critical computer hardware. The ADJSHELF is an adjustable fixed shelf compatible with all 19" wide Server Racks and Cabinets and is capable of adjusting from 19" - 38."