SATA 3.0 speed up to 6Gbps, compatible with SATA 2.0/1.0 USB 3.0 speed up to 5Gbps, compatible with USB 2.0 & 1.1 Compatible with 2.5''/3.5'' HDD, SSD Up to 12TB Cable Length:50cm No extra power required for 2.5" HDD/SDD For 3.5" HDD/SDD, Please connect the 12V/2A power adapter for stable transmission For UASP, only when your devices, hard drives and system are UASP supported, then the speed can be 20% faster Do not support BLU-RAY DVD, CD-ROM, DVD-ROM, CD-RW, DVD+RW Combo devices.