Dock two 2.5" & 3.5" SATA SSD/HDD drives over high performance USB 3.1 Gen 2 (10 Gbps) with UASP Hard drive dock / 2-bay hard drive docking station / HDD docking station with UASP / Dual-drive USB 3.1 Gen 2 docking station Dual-drive docking station with SATA I, II, III (up to 6 Gbps) support Large drive capacity of 12TB (6TB per bay) Top-loading design with eject button for easy drive access Independent power buttons for each drive Backward compatible with USB 3.0, 2.0 and 1.x