CMHOOKMW - StarTech.com 2.4 x 3.9in Vertical Cable Management D Ring

1.5U Metal D-Ring Hooks - Wire Organizer for 2 or 4-Post Network/Server Racks (CMHOOKMW) - Cable management ring - black - 1U - for P/N: RK12WALLOA, RK15WALLOA, RK3236BKF, RK4236BKB, RKCONS1708K, RKCONS1716K, RKQMCAB12V2