The QuantumZERO USB 3.0 Card Reader enables you to transfer data at a blistering speed of up to 5Gbps, saving your time. Product Features: equipped with Genesys GL3233 controller for best performance and wider compatibility. SuperSpeed data transfer rates up to 5 Gbps (actual rates depend on speed of memory card itself and computer USB host controller). Made of high grade ABS plastic for durability. Soft, cool blue LED light indicates operation. Plug and Play, Supports hot swap, Bus-powered. Backward compatible with USB 2.0, USB 1.1 at their native speed - USB 2.0 Hi-Speed devices (rates up to 480Mbps), and USB 1.1 Full/Low Speed devices (rates 12/1.5 Mbps). Product Specifications: Product Name: USB 3.0 Card Reader. Product Model: QZCR01. Cards Supported: SD-XC (up to 2TB), SD, MMC, RS-MMC, SD-HC, Micro SDHC, Micro SDXC, Micro SD, Mini SD* (* for Mini SD adapter is required, adapter not included) supports the latest UHS-I specification. Card Reader Controller: Genesys GL3233. Built Material: High Grade ABS Plastic. Output Interface: USB 3.0. Dimensions: 74 x 28 x 13 mm. Weight: 20 g. System Supported: Windows 10/8.1/8/7/Vista/2003/2000/ME/XP/98, Mac OSx9 or above.