Compatible with 2.5" SATA1, 2.5" SATA2 Hard Disc Drive and SATA SSD. Only for 2.5" SATA and SSD HDD. Connects 2.5" 7+15pin SATA HDD/SSD to computer via USB port for easy test and data transfer. Backward compatible with previous versions of USB ports (1.0, 1.1&2.0) & SATA hard disks (1.5Gb/s).