Built to take a pounding and come back for more, the XY-1019 protects your gear from even the most groundbreaking abuse. Crafted with our exclusive case-within-a case design that features an unique integral suspension system the XY-1019 provides un-parallel protection against even the most rigorous trauma. Built smart with dual rack rails for flexibility (mounted front and back an 16 1/4" rack depth) and two removable covers for easy access to your gear, the RR4UADS features 4U 's of rack space. Bring it on!