UF928 4G dongle is a portable 4G router, there is no need to connect to broadband, as long as you have a 3G/4G SIM card, you can connect to 3G/4G network. Compact and lightweight, it is suitable for outdoor streaming, gaming, car wifi, etc. Up to 10 devices can be connected at the same time, compatible with smartphones, tablets, laptops and other devices. Effective WiFi distance up to 10 meters. Main Features Performance4G sim router is compatible with LTE CAT4 standard, which can reach 150 Mbps high-speed Internet access, but mainly depends on the signal strength . It has a SIM card slot and a USB port. By using an external power supply, the operating time is unlimited. It can be charged via computer USB port, mobile phone charger, USB car charger or power bank. No driver installation is required.4G] network bands This 4G LTE USB modem is compatible with SIM card bands in most European countries. Band : FDD LTE: LTE-FDD: B1 (2100 MHz), B3 (1800 MHz), B7 (2600 MHz), B8 (900 MHz), B20 (800 MHz) UMTS: B1 (2100 MHz), B8 (900 MHz) ). ). This is not a "plug and play" modem, so please check that your sim card band is available before purchasing a 4g sim modem. How to use 4g dongle Even if your sim card supports 4g router with sim card, it is not always "plug and play".