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Embedded Works - Zoom 4631-00-21U Modem: USB Dongle 4G LTE Cat 1 with 3G Fallback | Embedded Works
US Robotics 56K USB Modem (USR5637) | Comtalk Inc.
Amazon.com: 4G LTE USB Modem WiFi Dongle, Mini Portable USB 4G Wireless Network Smart Router for Tablet Laptop Notebook, 2 LED Status, Plug and play(US Standard) : Electronics
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USR :: USR5637 USB Voice Faxmodem
Hardware Based External 56K USB Modem - Bluetooth & Telecom Adapters | StarTech.com
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Zoom Model 3095 USB Modem - 56K V.92 Data + Fax
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Amazon.com: ZTE MF833V 4G LTE USB Modem Dongle, an IoT Device, LiveU Compatible : Electronics
Unlocked ZTE MF79U 4G LTE FDD800/850/900/1800/2100 Mobile WiFi USB Modem Dongle | eBay