... development of WAVECOM module, 220V power supply, can be a long time stability, generous luxury housing. it is ... , USB 2.0 can be used directly into the computer usb port, for laptops, desktops can be used. ... cards(big or small)2, connection with the computer through a data line can be integrated with USB 3, ... , USB 2.0 can be used directly into the computer usb port, for laptops, desktops can be used. ...