This UNLOCKED refurbished no-contract modem is "like new" and is perfect for Canadian, Mexican, and other international customers who want to swap to a more current device or need to replace a lost/broken device, but don't want to alter their contract (purchasing this device will NOT extend or alter your contract - once you get the new device, simply swap the SIM card* from your old device to the new one). This unlocked modem works with virtually all GSM providers worldwide, including including Bell Mobility, Rogers, Telus (Canada), and Telcel (Mexico). *the 312U has a standard-sized SIM slot - if you plan to use a microSIM, you'll need the micro-to-standard SIM adapter
While this modem is unlocked and will work with active SIMs from virtually any GSM provider worldwide, it is NOT recommended for AT&T users in the US who want to use AT&T's LTE network (it will only connect to AT&T's 3G and HSPA+ networks). AT&T users who do not need an unlocked device should use the USBConnect Momentum.
Refurbished devices fall under 3Gstore's standard 30-day return policy (read more at 3Gstore.com/rma). There is no manufacturer's warranty on refurbished devices.