These modems would often slot into a Mini PCI-e slot in the netbook motherboard. [delokaver] figured out how to use these 3G cards over USB instead. It’s actually a fairly straightforward hack.

The usage of a U.FL connector allows controlling both active and passive antennas whose signals are transmitted via USB. Just combine the PX1 with one of the many PCI Express Mini Card carrier cards ...

There’s also four mini-PCI-E slots along the top ... and x1 PCI-E slot hanging off the side. Ports include a USB 2.0, a Cisco-style serial console port, two HDMI ports, and a Gigabit Ethernet ...