Ports: 4 x 4-pin Type A USB 2.0 - USB Downstream, 1 x 4-pin Type A USB 2.0 - USB Upstream
Dimensions: 3.54" x 1.5" x 0.47"
Data Transfer Rate: Up to 480Mbps
I just recently bought a couple USB SD Card readers from here. They actually arrived quickly, well packaged, and they worked great. Plus the S&H was free. You can't beat free.