High Quality Bluetooth USB Adapter For Window 8/Window 7/XP/Vista/Mac OS 10.3.9 A hybrid card reader designed for high performance, high quality metal casing, sleek and stylish, high-speed USB2.0, transfer rate up to 480Mbps, 4  card slot, can read and write the following series of flash memory cards: SD / SDHC / DV / T-Flash / Micro SD / Mini SD/M2/MS and Sony memory long stick and short rod, without external devices. Using small compact design, can be directly in the flash drive to quickly view and edit files, easy to carry, download and upload, via USB flash drive needed to drive power supply, hot swappable, with LED lights to show whether in working conditionHigh-quality metal casing, multi-card reader, support for PC and MAC computers