magnaroute HD-17 Multi-Vendor Rack Mount Kit Compatible with Many 17.3" Wide Buffalo Tech, Cisco, Dell, D-Link, Linksys, NETGEAR, and TRENDnet Products For 17.3" wide (full width) switches only!  Please check the compatibility list below and make sure your switch is listed as supported by this rack mount kit before ordering. Each kit contains 2 rackmount ears, 16 screws (8 x M3 and 8 x M4), and a color-matched high quality cage nut kit (4 x M6) with metal cup washers. Rack ears are made of high strength carbon steel with a black protective coating. Works with over 110 different switches! Use the schematic image to verify hole spacing against your equipment. A perfect OEM substitute for NETGEAR Part 420-10005-01 and for Dell Part 6X177.