Rack Slide Rail Kit for TVS-471U & other 2U series models

QNAP Rail Kits assist in the installation of rackmount QNAP NAS. The sliding rails make it easier to slide QNAP NAS in and out for easy maintenance and management. QNAP NAS rackmount models comply with ANSI/EIA-RS-310-D rack mounting standards. Before purchasing server racks, please make sure the server racks conform to the matching specifications.1. Rack sizeA. Mounting post width: ≥ 17.8″ / 451 mmB. Panel width: ≥ 19.1″ / 485 mmC. Mounting post depth: 18″ ~ 32″ / 443 ~ 815 mmD. The distance between two rack posts (center-to-center measurement of the rack’s square holes) is 18.3″ / 465 mm2. The rack kits are only compatible with 9.5 mm x 9.5 mm square-hole server racks.Note: This rail kit is designed for racks with 25-inch mounting depth. You may need to reserve some space when installing and adjusting the rail kit for racks with 18-inch mounting depth.