Universal mounting pattern for 2- and 4-post open-frame racks Easy-to-install with self-aligning, self-captivating carriage bolts for single-sided attachment Arrowhead supporting fingers provide easy insertion, removal and alignment of Cat 5e, 6, 6A and other cable types Deep cable depth provides smooth transition of cables from vertical to horizontal positions Large feed-through holes and pre-scored grommets provide cable feed from front to back of cable manager Unobstructed cable access for all rack unit locations Extra deep cable channel for maximum cable density has multiple cable tie-down points Standard front cover, with field installed snap hinges, provides cable access from right, left or neutral Double-sided models with supporting fingers include front central latching cover and rear snap-on cover Double-sided models with posts and gates support and contain cables. Five posts and gates are included; additional sets are available as accessories Posts snap into prepunched holes in the back of the cable manager Gates snap onto posts, open from left or right as needed and swing 280º for cable access. Posts can be used alone as slack spools to control long patch cords The single-sided cable manager can be upgraded with CABLETEK Post and Gates Kits CABLETEK Rear Cover is sold separately as an accessory for vertical cable managers with posts and gates, and is fully field installable; no tools needed