SAVE RACK SPACE: This 1U 19" Server/network rack mountable cable management organizer allows for organizing/routing cables within your rack; Low profile design leaving more room for equipment MANAGE CABLES AND EQUIPMENT: D-Ring Hook Passthrough holes (with inner/outer diameters of 1.18/1.02in [26/30mm]) provide a clean and protected exit from the rack and keep bundles manageable WIDE COMPATABILITY: Horizontal cable/wire/cord manager can be fit into any standard 19" 2 post or 4 post rack, and is easily mounted using the included M5 cage nuts and screws TECH SPECS: 1U 19" Rack cable organizer | 4 x cable pass-through | 5x routing loops | Steel construction | Mounting hardware included | 4" depth with hooks installed | EIA/ECA-310-E compliant STARTECH.COM ADVANTAGE: IT professionals choice for over 30 years; This 1U Rack Cable Manager is backed for 5-years by StarTech.com, including free 24/5 North America based multi-lingual tech support