The Transcend StoreJet 25CK3 is a protective enclosure kit designed to turn your 2.5-inch SATA HDD or SSD into a portable external drive. It utilizes a USB 3.1 Gen 1 external interface for data transfers up to 5Gbps, while the internal SATA III 6Gb/s bus ensures that the connection between the drive and the controller remains efficient. To keep your data safe from accidental drops or bumps during travel, the device features a dual-layer defense consisting of an outer rubber case and an inner rubber shock absorber. Measuring 129.5 x 80.8 x 18.8 mm and weighing just 108 g, this grey enclosure is compact enough to slip into a pocket or laptop bag without adding bulk. It accommodates drives up to 9.5 mm in height, and for those with thinner disks, the included 7mm to 9.5mm spacer ensures a snug fit. An integrated LED indicator lets you know when the drive is active, while passive cooling keeps the internal components stable during operation. This kit is particularly useful for users who want to repurpose an old laptop drive or protect a new SSD for mobile use. If you pair it with a Transcend 2.5” SATA III SSD and the Transcend Elite software, you can take advantage of the one-touch backup function to simplify your data archiving. Everything needed for assembly is included in the box, from the USB Type-A to Micro-B cable to the PH1 screwdriver and M2 mounting screws.