Hot Swap up to three 3.5in SAS or SATA hard drives in & out of this removable backplane; features 3-in-2 design, that requires only two 5.25in drive bays. The SATSASBAY3BK SAS/SATA Backplane offers an easy-to-use & cost-effective SATA hot swap solution & features a sturdy & compact 3-in-2 design that lets you install up to three 2.5"/3.5" SATA or SAS hard drives into only two 5.25in bays. With support for SATA/SAS 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.