This is purposefully locked by TP-link. I hope all modems with usb port support only usb1.1 standard which has max transfer rate of 12 Mbps. TP-link should release a firmware upgrade for this.

The introduction of usb port in TD-W8968 is very good initiative. It creates lots of possibilities for the modem usage. The file sharing feature is pretty straight forward and I love it. 2 things...