Complies with USB2.0 and backward USB1.1 specifications Support transfer rate: High-speed (480Mbps), Full-speed (12Mbps) or Low-speed (1.5Mbps) Supports High Speed Memory and SDHC Cards True plug and play Specifications: Dimensions:176*24*17 mm weight: 20g Connecting port type: USB Compliant with USB version: USB 1.1 / 2.0 Over-Current protection: Yes Cardreader in use LED indicator: Yes Packing : 1) color box 2) Blister packing