The RackSolutions 2U Adapter Bracket 2-Pack is designed to give IT professionals flexibility when adjusting the mounting depth of their server racks. These brackets are compatible with a wide range of OEM brands like Dell, HP, and Lenovo, making them suitable for any 4Post rack with square, round, or threaded holes. With a 5-inch depth, each kit includes two brackets that can be combined to increase U height or used to modify rack depth as needed. Supporting up to 50 lbs per rack unit, these highly configurable adapter brackets ensure easy installation and flexible server setups.