Share the freedom of 3G/4G! The TL-MR3420 3G/4G Wireless N Router allows users to share a 3G/4G mobile broadband connection with family & friends via wired or wireless connections. By connecting a 3G/4G USB (Universal Serial Bus) modem to the routers, a Wi-Fi hotspot is instantly established, via which multiple devices can access the Internet & share data & applications wirelessly. ** Enjoy 3G/4G Wireless Sharing** TL-MR3420 features blazing 4G speeds & backward compatible with 3G modems, allowing users to share a 3G/4G mobile broadband with family & friends via wired or wireless connection. ** Tests in the Field-High Compatibility** Compatibility is the most important aspect to consider when you're selecting a 3G/4G router. To ensure the best compatibility between our routers & the modem you would use with the router, TP-LINK has made certain that our 3G/4G Routers are compatible with the ISPs in the regions in which they are sold. We have teams around the globe continually testing our Routers with newly emerged modems to ensure that end users can feel confident that their routers will operate flawlessly where they live & work. ** Comprehensive 3G/4G & WAN Connection Backup Strategy** The TL-MR3420 stands out with its 3G/ 4G & WAN connection back-up, which keeps users online when one connection fails. TP-LINK's 3G/4G Router provides users with both 3G/4G Preferred & WAN Preferred back-up modes, while other brands provide one or the other. This brings users a high degree of flexibility when users are setting up the networks with considering connection costs & length of downtime. ** Wireless N Speed & Range** Complying with the IEEE 802.11n standard, the TL-MR3420 can establish a wireless network with transmission speeds of up to 300 Mbps, while mitigating data loss over long distances & through obstacles in a small office or a large apartment, even in a steel-&-concrete building. Above all, users can easily pick up their wireless networ