Protokart All in One USB Hub Combo 3 USB ports and all in one card reader, USB 2.0, for Pen drives/Cameras/Mobiles/PC/Laptop/Notebook/Tablet, Docking station, MS/MS Pro Duo/SD/MMC/M2/Micro SD support Powered by KGM Innovative Solutions  This product comes with 3 months warranty An all in one docking solution for your external storage connectivity. Can be docked to PC, Laptop, Mobile, Tablet. Supports USB 2.0 3 individual USB 2.0 extension ports and all in one card reader. Supports MS/MS Pro Duo/SD/MMC/M2/Micro SD. Maximum transmission speed of 480 MB/s Supports hot swap LED light for device status Operating temperature 10 ~ 70 degrees System support: Windows 98/ME/2000/XP/7/8.1/10, Linux 2.4, Mac OS.