Top of Rack switch placement in a rack - not at the Top! - Virtual Wiki
PATCHBOX: The most innovative network cabling system for 19" racks
StarTech.com 2.4 x 3.9in Vertical Cable Management D Ring - 1.5U Metal D-Ring Hooks - Wire Organizer for 2 or 4-Post Network/Server Racks (CMHOOKMW) , Black : Amazon.co.uk: DIY & Tools