Middle Atlantic Essex Series Caster Kit for Base Series RCS, QAR, or MMR RacksUpgrade the versatility of your equipment rack with the Middle Atlantic Essex Series Caster Kit, a purpose built accessory designed to retrofit Base Series RCS, QAR, and MMR racks with four robust casters. This caster kit empowers you to maneuver heavy racks with ease, streamline reconfiguration during installations, maintenance windows, or room rearrangements, and optimize space in data centers, control rooms, broadcast facilities, and professional