Alcey Aluminum Bus-Powered USB 3.0 3-Port Hub with Multi-in-1 3-slots Card Reader Combo for iMac, MacBook Air, MacBook Pro, MacBook, Mac Mini, PCs and Laptops Sleek Apple-style design ideal For Mac Pro, iMac, MacBook Air, MacBook Pro, MacBook, and Mac mini Adds 3 USB 3.0 ports and Multi-in-1 3-slots Card Reader to your computer; Backward compatible with USB 2.0 / 1.1 Supports SDXC (up to 2TB), SDHC, SD, CF, High-Speed CF(UDMA), Micro SDXC, Micro SDHC, Micro SD cards and MMC Plug and play; Hot swapping; USB-powered (no external power or battery needed); Built-in Overvoltage / Overcurrent / Leakage and Short-Circuit protection unit Compatibility: Windows 2000 / ME/ XP / Vista / 7 / 8/10 (32bit/ 64bit ) and MAC OS 10.X or later version