Hapurs 3 Port Portable USB 3.0 Hub, USB3.0 High speed SD TF MMC card reader with Power Switch Easily add 3 USB 3.0 ports + TF / SD / MMC card reader to any compatible PC or Mac. Eliminate the hassle of constantly having to "switch" devices. Enjoy data transfer rates of up to 5Gbps so you spend less time syncing (actual rate will depend on the capability of your device). 1.5 ft built-in cable extends to the computer tower's rear-facing USB ports. Lightweight, "power-bar" design effectively saves space. Blue LED indicates operation. Designed with a built-in surge protector to protect your devices. Supports hot swapping. Compatible with SDXC, SDHC, SD, MMC, RS-MMC, Micro SDXC, Micro SD, Micro SDHC Card, Support UHS-I Cards. Compatible with all version Windows, MAC and Linux systems. Compatible with SDXC, SDHC, SD, MMC, RS-MMC, Micro SDXC, Micro SD, Micro SDHC Card, Support UHS-I Cards. Compatible with all version Windows, MAC and Linux systems.