This USB 3.0 SD™ card reader lets you access two SD cards simultaneously. You can: Download and edit photos and videos Back up presentations, documents and spreadsheets Distribute content to multiple employees The card reader transfers files between your USB-A tablet, laptop or desktop computer and the SD card. Ultra-Fast Read/Write Access The USB SD card reader features SD 4.0 and UHS-II support. It reads and writes to and from the cards at speeds of up to 312MB/s. The reader also supports USB 3.0 connection speeds of up to 5Gbps between the computer and the reader. For 70% faster performance between the computer and the reader, UASP is also supported when connected to a computer that also supports UASP. The reader is backward compatible with USB 2.0 and 1.1. Multi SD Card Reader Supports All SD Card Types The dual SD card reader supports all SD cards: SD (Secure Digital), SDHC™ (Secure Digital High Capacity) and SDXC™ (Secure Digital Extended Capacity). It also supports UHS cards, and is backward compatible with older SD cards. The card reader will also support the following card types when connected through an adapter: microSD™ miniSD™ MMCmobile™ RS-MMC™ MMCplus™ Portable Design The reader has a small footprint design and comes with a wrap-around USB-A cable. It fits nicely inside a carrying case. The reader is USB powered, but you can connect a power source to the Micro-USB power port if you require more power. 2SD4FCRU3