The CMHOOK1UN Vertical Cable Management D-ring lets you add a 1U metal cable hook to your server rack or cabinet to provide an organized channel for your cables. This TAA compliant product adheres to the requirements of the US Federal Trade Agreements Act (TAA), allowing government GSA Schedule purchases.\n\nConstructed of high-quality steel, the cable D-ring measures 1.8 x 3.9in (4.5 x 10cm) and offers a flexible opening for easy insertion of bundled cables. 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.\n\nPlease see our other cable management D-ring products for different size configurations:\n1U Cable Management D-ring - 2.2 x 5.9in (5.7 x 15cm) - CMHOOK1UL\n1U Cable Management D-ring - 2.2 x 3.9in (5.7 x 10cm) - CMHOOK1U\n\nBacked by a StarTech.com 2-year warranty.\n\nThe StarTech.com Advantage\n- Route cables neatly through your rack with an easy-to-install cable management ring\n- Increase the longevity of your server and networking equipment interfaces by providing cable strain relief