StarTech.com 1U Adjustable Server Rack Mount Shelf - 175lbs - 19.5 to 38in Deep Universal Tray for 19' AV, Data & Network Equipment Rack (ADJSHELFHD) - Telinehylly - musta - 1U - 19' malleihin P/N: RK1233BKM, RK1833BKM, RK2433BKM, RK2537BKM, RK4236BKB, RK4242BK24, RK4242BK30