1,USB 2.0 SD Card Reader
2,Support SD/MMC/SDHC/TF/Micro SD
3,Working temperature: -20 to 65c

SD Card Reader, Suitable for PCs, Notebooks and Palmtops
Slimmest design, convenient for carrying
Fully supports SD memory card reader and writer
For PCs, Notebooks, palmtops, PDAs with USB port
Reader and writer supports: secure digital card, MMC, mini SD and RS-MMC
No external power required
Printed logos are accepted
Perfect for promotional purpose or as commercial gifts