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UNLOCKED Sierra 312U (Telstra Ultimate) 3G/4G USB Modem for Canada/Mexico/International - Refurbished
No Contract Upgrade

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Item Number: 4147
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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 There is no manufacturer's warranty on refurbished devices.


  • USB connection: Compact modem plugs directly into your laptops's USB port.
  • 4G LTE/HSPA+: Take advantage of the nation’s fastest mobile broadband network that’s getting faster with 4G. (where available)
  • Plug and play: Installation is quick and easy using the helpful setup wizard.
  • Expandable memory: Includes an expandable memory slot that supports microSD™ cards up to 32GB in size.
  • GPS capability: Access maps and other information about your current location from your laptop.


  • Technology - GSM/GPRS/EDGE/UMTS/HSPA+
  • Frequency - GSM/GPRS/EDGE: 850/900/1800/1900; UMTS/HSPA+: 850/1900/2100
  • Dimensions - 2.6 x 1.02 x 0.51 inches
  • Weight - 1.06oz
  • Antenna - Built-in antenna and external antenna port (external antennas sold separately)
  • Supported OS - Microsoft® Windows® 7, Windows Vista®, Windows XP SP3 and Mac® OS X (v10.5 or later)

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