The USR® Courier® Lite 56K* Business Modem with V.Everything® technology provides secure, reliable analog connections. Many modems claim reliability, but even fewer offer the multitude of advanced business features like Courier’s Carrier Loss Redial, Dialback Security, and Remote Access capabilities. Point of Sale, M2M (Machine to Machine), IoT (Internet of Things) applications as well as Out of Band Management and Remote Management deployments utilize remote access to configure or troubleshoot. With over 1 million units sold world-wide, the Courier family of modems real-world performance is unmatched. When failure is not an option, you need the world-class capabilities that only come from the top of the USR product line.
Form Factor External - Serial
OS Compatibility Windows, Linux
Regional Compatibility USR5686G-PRO: US/CA; USR845686G-PRO: EU/UK
International Kit information for USR5686G-PRO
Product Code: USR5686G-PRO
US Availability: In stock at most resellers
For Export Control (ECCN & HTS) please Contact Us for the latest information.
Phone Pre-Sales: 877.710.0884
2-year limited manufacturer warranty from date of purchase. Click here for full warranty information.
Product Code: USR5686-ACC
Power supply for US use only. For international power supplies see VersaPower Kit below. For any questions or to inquire about purchasing contact USR at 877-710-0884 or send us an email.
USR3453C-ACC VersaPower Kit (Universal power adapter) automatically handles global power variations from 100 V to 240 V and includes alternate plugs for use in other regions (N.A., Europe, the Middle East or Africa). Kits with additional cables and cords are available for additional regions.
Product Code: USR3453C-ACC
US Availability: Contact USR at 877-710-0884 or send us an email
The Courier Lite Business Modem is approved for use in over 45 countries. Visit the Global Country Approvals & Accessory Kit Guide to view current country approvals and appropriate accessory kits. For any questions or to inquire about purchasing contact USR at 877-710-0884 or send us an email.
USR013453A-ACC: UK phone adapter + UK power cord + Dongle + IEC C8 adaptor
USR043453A-ACC: UK phone adapter + Loopback + Dongle + Australian power cord + IEC C8 adaptor
USR243453A-ACC: Germ,Ital,French phone adapter + Euro power cord + Loopback + Dongle + IEC C8 adaptor
USR3453CIEC-ACC: AC power cord C14 to C7 + IEC C8 adaptor
This video shows a detailed walk through how to update firmware on the USR5686G-PRO Courier Lite Business Modem. Files referenced are available at www.usr.com/support/5686g-pro.
Length: 6:40 minutes
1:33 Check the Current Firmware Version
3:02 Get Flash Loader and New Firmware
4:39 Upload Firmware to the Modem
5:44 Verify the Upgrade
* Capable of receiving at up to 56 Kbps and sending at up to 48 Kbps (or 31.2 Kbps with V.90 server). Due to FCC regulations on power output, receiving speeds are limited to 53.3 Kbps. Actual speeds may vary. V.92 and V.90 features require compatible phone service and support from your Internet Service Provider (ISP). USR modems featuring V.92 enhancements are backward compatible and will negotiate the highest possible speed when connecting to an ISP.
** Support for 64 bit operating systems requires a driver update (available in the support section of this website). Support for newer Operating Systems may also be available.
‡ Courier Lite (USR5686G-PRO) is the recommended replacement for Courier USR3453C, but features and specifications do vary. It is suggested to verify requirements before purchasing replacement units.