This 2.5 hard drive tray lets you add even more flexibility to how you manage your data storage with the SATSASBP425 and SATSASBP125 series backplanes. This spare drive tray can help you save time in a fast-paced work environment. It's interchangeable with trays from the StarTech.com single-bay backplane(SATSASBP125) and the four-bay backplane (SATSASBP425), giving you an extra tray in addition to the trays you're already using, to create expandable storage or as part of a rotating back-up solution. The drive tray supports both SAS and SATA 2.5' drives, ranging from 5 to 15mm in height. To maximize the performance of your hard drives, the single and quad-bay backplanes support SAS II and SATA III enabling file transfer speeds up to 6 Gbps when paired with a compatible controller. The durable aluminum drive tray is designed for long-lasting performance. The venting helps to ensure proper air flow and maximize heat dissipation, to help keep your drives running at optimal temperatures. The SATSASTRX25 is backed by a StarTech.com 2-year warranty and free lifetime technical support.