U900 is not only a modem or a router, it is a real UFI, just like HUAWEI E3131.
You can use it in cars via standard usb port, and outside with powerbank via standard usb port.
When you use it on your laptop, it is a modem on your laptop and others can share the wifi at the same time, that is real UFI functions. just plug and play, no need to set up, install driver, nor switch the modes.
1. This is not only 3G USB Modem! This is USB Wi-Fi Modem Router.
2. Wireless access is available on both 3G network and Wi-Fi networks.
3. Internet connection sharing, up to 5 users can access the Wi-Fi network at the same time.
4. Work with external power supply, no limited working time.
5. Users experience the ultra-speed internet with amazing low power dissipation.
6. Convenient, portable, fashion.
From USB Stick
Frequency WCDMA/UMTS/HSUPA/HSDPA: 2100MHz
3G Date Rate Download Up To 14.4Mbps, Upload To 5.76 Mbps
WiFi Up to 5 Wi-Fi Users
Wi-Fi Protocol IEEE 802.11 b/g/n
Support System Windows 2000/XP/Vista/7,Mac,Linux,Android
the Router can not work USA SIM Card like 3G network 850mhz. but can work Many countries, such as Europe, Africa, Asia, Southeast Asia sim card which support 3G 2100mhz network . Please make comfirm before order it.