Add safe & reliable swappable storage from a single 5.25in front bay Mobile rack system makes removing/replacing drives quick & safe, while a key lock prevents unauthorized access to the drive Rubber shock absorbers, cooling fan & 3, 000+ insertion rating ensures durability & reliability from the Mobile Rack & the SATA drive Backed by a Star Tech.com 2-year warranty & free lifetime technical support This high quality Removable SATA Hard Drive Drawer/ Mobile Rack delivers a convenient SATA hot-swap solution, allowing you to quickly swap Serial ATA hard drives in & out of a computer without having to open the computer case. Simply install the (included) drive bay into a 5.25in drive bay on the host computer, then mount a 3.5in SATA HDD in the (removable) caddy. Connecting the SATA hard drive to the computer is as easy as inserting the caddy into the drive bay, which can be locked to prevent unauthorized removal of the installed SATA drive. A suitable solution for large volume drives, the HDD drawer supports SATA, SATA II, & SATA III-6 Gbps hard drives allowing you to swap in large amounts of data in a matter of seconds. With support for SATA HDD speeds up to 6.0 Gbps, the mobile rack/backplane is fully compatible with RAID installations to ensure maximum performance & versatility for enhanced storage applications. The drive caddy features a rear panel ball bearing fan that helps keep the enclosed drive cool, in turn helping to optimize operation while preserving drive lifespan. To prevent damage to the hard drive (s) while being transferred in & out of the computer, the drive caddy features shock absorbers & rubber cushioning that help limit vibration/shock to the drive. This mobile rack is also compatible with DRW113-series SATA hard drive caddies. A dependable, long-lasting storage solution, the drive drawer features highly durable construction, with a 3K insertion rating & is backed by Star Tech.com''s 2-year warranty. WhatÂ’s in the box 3.5in Mobile Rack Caddy 5.25in Mobile Rack Bay Keys Bag of mounting screws Instruction Manual