USB 3.0 Hub, Alcey USB 3.0 5-Port Aluminum Hub with External Stereo Sound Adapter and 2-Slot Card Reader Combo and 5V/4A High-Capacity Power Supply ELEGANT DESIGN: Sleek Apple-style design ideal for iMac, MacBook Air, Mac Pro ,MacBook Pro, MacBook, Mac Mini, PCs and Laptops; A large grey rubber pad at the bottom preventing the hub slipping around to ensure stable connection MULTIFUNCTIONAL DEVICE: Adds 5 USB 3.0 ports with External Stereo Sound Adapter and SD/TF card reader to your computer; 2-Foot Shielded Cable makes a safe and efficient data transfer for maximum performance and longtime usage; Built-in Overvoltage / Overcurrent / Leakage and Short-Circuit protection unit SUPERSPEED DATA TRANSFER: Saves on syncing time with data transfer rates of up to 5 Gbps (much faster than USB 2.0); Compatible with USB 2.0 and 1.1 specifications DIVERSE FEATURES: Enables USB connectivity with your existing 3.5 mm audio headphones, headset, speakers, or microphone; Supports SDXC (up to 2TB), SDHC, SD, Micro SDXC, Micro SDHC , Micro SD; Able to read SD and TF card simultaneously COMPATIBILITY: Mac OS X 10.6 & higher, Windows 98SE /ME /2000 /XP /Vista /7/8/10, Linux 2.4 or above