Additional Functions: Plug and play; support hot swap; on/off switch for HDD protection. Led light shows power and activity status. Support Systems: Windows 11/XP/Vista/7/8/10(32bit and 64bit); Mac OS 10. X. High Speed Transfer: Data transfer speed reaches up to 5Gbps. Backward compatible with USB 2.0/1.1. Works with up to 3 HDDs: This USB 3.0 to IDE and SATA adapter is equipped with a SATA III connector and 2 IDE connectors (one 2.5" and one 3.5"). It allows users to operate 2 HDDs (One IDE and One SATA ) simultaneously. It’s compatible with 2.5"/3.5" IDE/SATA hard drives. Universal USB to SATA/IDE Adapter: Supports 2.5"/3.5" SATA HDD and SSD, 2.5"/3.5" IDE HDD, SATA DVD-ROM, CD-RW, DVD-RW, DVD+RW Optical Drive,two IDE connector Plus one SATA III connector.