Add a cable management hook to your server rack or cabinet for strain relief and organization 1U Bracket can be mounted to any standard rack post Sturdy steel construction 1U Vertical Server Rack Cable Management D-Ring Hook Use with server racks and cabinets, structured wiring closets and network distribution cabling to keep cables neat and tidy 2.2 x 3.9 in (5.7 x 10 cm) Cable Organizer / Rackmount Cable Ring / Cable D-Ring / Cable Manager