The CMHOOKMW Multi-Directional Vertical Cable Management D-ring lets you add an internal or external facing cable hook to your server rack or cabinet, to provide an organized channel for cables. This TAA compliant product adheres to the requirements of the US Federal Trade Agreements Act (TAA), allowing government GSA Schedule purchases. Constructed of high-quality steel, the cable management ring measures 2.4 x 3.9in (6 x 10cm). For flexible mounting options, the cable ring features a right-angled mounting bracket with 2 sets of mounting holes, enabling you to face the D-ring in the direction that best fits your application. Providing strain relief for attached cables, multiple cable rings can be attached to your rack where you need them for a versatile cable management solution. Backed by a StarTech.com 2-year warranty. The StarTech.com Advantage - Route cables neatly through your rack with an easy-to-install cable management ring - Face the D-ring internally or externally to the rack, with a right-angled mounting bracket - Increase the longevity of your server and networking equipment interfaces by providing cable strain relief