Cateck USB 3.0 HUB, Bus-Powered USB 3.0 3-Port Aluminum Hub with External Stereo Sound Adapter Combo Sleek Apple-style design ideal For Mac Pro, iMac, MacBook Air, MacBook Pro, MacBook, and Mac mini Adds 3 USB 3.0 ports and External Stereo Sound Adapter to your computer; Backward compatible with USB 2.0 / 1.1 Enables USB connectivity with your existing 3.5 mm audio headphones, headset, speakers, or microphone; Perfect to bypass a faulty sound card, audio port, or as a replacement for a broken USB audio adapter 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