Connect and swap four 2.5/3.5" SATA drives or SSD through USB 3.0 Support SATA III (6 Gbps) and UASP for optimal performance- Compatible with USB enabled computer systems such as Dell Optiplex & Apple Mac & MacBook and SATA 2.5in/3.5in hard drives Hard Drive Dock / Four Bay Dock / Hard Drive Docking Station / SATA Dock / Hard Drive Docking Station with UASP / SATA HDD Docking Station / Hot Swap Hard Drive Dock Replacement for SATDOCK4U3