StarTech.com ADJSHELF 1U Adjustable Vented Server Rack Mount Shelf, Rackskab

175lbs, 19.5 to 38in Deep Universal Tray For 19" Av/ Network Equipment Rack (Adjshelf), Rackhylde, Sort, 1U, 19", For P/n: Cabscrws1224, Rk1536bkf, Rk1836bkf, Rk3236bkf, Rk4236bkb, Rk4242bk24, Rk4242bk30