33-in-1 USB 2.0 Card Reader (Black) [Extremely Compact, Can Be Placed in Your Laptop Bag Easily] Support SDHC / SD / MMC Memory Card Reader to USB 2.0 Adapter USB 2.0 Hub Compliant with USB specification / Ideal for portable use on the road or at home with a desktop or laptop. / Your data and pictures can be instantly transferred to your PC / Notebook 4 Card Slots 0.3 x 1.5 x 2.8-inches (H x W x D, approximate) Backward-compatible with USB specification 1.1 / 2.0 1.5, 12 and 480Mbps data transfer rate