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US Robotics Courier 56K Business Modem with V.92
US Robotics Courier 56K Business Modem with V.92, RS-232, 0 - 50 °C, 20 - 80%, -20 - 70 °C, 4.29 x 7.09 x 1.69" (109 x 180 x 43 mm), 9.52 oz (270g)

 SKU:   1010002680
 Manufacturer:   U.S. Robotics
 Mfg. Part number:   USR3453C
 Retail Price:   $326.00
 Our Price:    $238.63


Compatible operating systems
DOS, Windows 3.1/95/98/Me/NT 4.0/2000/2003/2003 64 bit/XP/XP 64 bit/Vista/Vista 64 bit, UNIX, Linux


Data compression
V.92, V.90, V.34, V.32bis, V.32, V.22bis, V.22, V.23, V.21

Error corrections

Minimum system requirements

Dimensions (WxDxH)
4.29 x 7.09 x 1.69" (109 x 180 x 43 mm)

9.52 oz (270g)

Operating temperature range (T-T)
0 - 50 °C

Operating relative humidity range
20 - 80%

Storage temperature range (T-T)
-20 - 70 °C
The USRobotics Courier 56K Business Modem with V.Everything and V.Everywhere technology is the latest in the distinguished Courier line. Many modems claim reliability, but few match the real-world performance of Courier modems. Even fewer offer the multitude of advanced business features found on this modem: global usage, Carrier Loss Redial, and Dial and Dialback Security. Remote management capabilities let you configure, set up, update or troubleshoot your modems from almost anywhere. When failure is not an option, you need the world-class capabilities that only come from the top of the USRobotics product line.

Incredible Compatibility and Flexibility

-V.Everything® Technology provides support for all key communications protocols.
-V.Everywhere™ Technology so that one, highly reliable hardware platform supports connections with most international phone systems.
-Synchronous/Asynchronous, and leased-line support.
-Supports all major operating systems: DOS, Windows 3.1/95/98/Me/NT 4.0/2000/2003/2003 64 bit/XP/XP 64 bit/Vista/Vista 64 bit, UNIX, Linux – any operating system that supports an RS-232 serial port.
-Universal power adapter automatically handles global power variations from 100 V to 240 V.

Integrated Multilayered Security

Dial security:

-Autopass works with up to 79 users, and automates logging in between two Couriers by including the password in the V.42 error-control request.
-Password Prompting, works with any type of modem, where the host Courier requests a password from those dialing in.
-Dialback security checks incoming calls for password authorization and then dials back predefined numbers to assure only appropriate users establish connections.

Rock-solid Reliability

-Carrier Loss Redial automatically senses, redials, and re-establishes dropped remote connections – creates a virtual leased-line connection between two modems, over regular dial-up lines.
-Advanced Line Probing technology finds the fastest connection and maintains connections under poor line conditions.
-Brown-out Protection assures you stay connected even in areas with poor power facilities.
-Robust, business-oriented design, component selection, testing, and experience to support non-stop operation.

Powerful Management Tools

-Remote Management lets you configure or troubleshoot from almost anywhere.
-Instant Update† automatically checks the USRobotics web site for code updates when you’re online and downloads new features at your convenience.
-Remote Flash capability lets you upgrade Courier modems at remote locations from a central site.

** Support for 64 bit operating systems requires a driver update (available in the support section of this website).
* 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). USRobotics modems featuring V.92 enhancements are backward compatible and will negotiate the highest possible speed when connecting to an ISP.
† Requires Windows operating system.
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