1: all in 1 Card Reader (SD,SDHC,SDXC,T-Flash),read both of SD and TF cards at one time
2: USB (universal serial bus) 3.0 specification, Super speed 5.0Gbps
3: Backward compatible with USB 1.1,2.0
4: Supports Windows ME, 2000, NT, XP, Vista, Win7 8 10, Mac O.S