Anker [Upgraded Version] USB 3.0 4-Slot Card Reader with Built-in 0.4ft Cable for SDXC, SDHC, SD, CF, High-Speed CF (UDMA), MS, Micro SDXC, Micro SDHC, Micro SD Cards [Support UHS-I Cards] Four in One: Simultaneously read and write on four cards, eliminating the effort of plugging in and out. SuperSpeed Data Transfer: Sync at speeds up to 5Gbps. Backward compatible with USB 2.0 / 1.1. (Actual transfer rates depend on specific devices.) Fully powered via your USB port  no additional power supply required. Plug-and-play ready and supports hot swapping  no driver installation required. What You Get: Anker 4-Slot Card Reader (with built-in 0.4ft cable), welcome guide, our fan-favorite 18-month warranty and friendly customer service.