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U.S. Robotics
USR5639
$58.00
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Manufacturer U.S. Robotics
Manufacturer Part Number USR5639
Manufacturer Website Address https://www.usr.com
Brand Name USRobotics
Product Model USR5639
Product Name 56K* USB Softmodem
Marketing Information 

The USRobotics 56K* USB Softmodem delivers the performance and reliability USRobotics is known for in a compact, cost effective form factor. Broadly compatible with Windows including 64 bit and server systems, the modem uses the CPU of the host computer for high compression throughput due to direct parallel access. Features include ring detection and qualification - eliminating unintended wake-on-ring events due to activity on the phone line other than ringing, as well as handling pulse dial control to eliminate system timing dependencies common with soft modems. The USRobotics USB Softmodem is fully compatible with V.92 and lower rates, making it ideal for compact POS solutions that only require V.34.


Product Type Data/Fax Modem
Fax Technology ITU-T V.17
ITU-T V.27ter
ITU-T V.29
ITU-T V.21
Modulation ITU-T V.92
ITU-T V.90
ITU-T V.32
ITU-T V.32bis
ITU-T V.34
Host Interface USB
Number of Modem (RJ-11) Ports 1
Headphone No
Microphone No
Modem Transmission Data Rate 56 kbit/s
Form Factor Desktop
Height 0.84" (21.34 mm)
Width 1.18" (29.97 mm)
Depth 3.10" (78.74 mm)
Package Contents 
  • 56K* USB Softmodem
  • Phone Cord

Certifications & Standards 
  • FCC
  • IC
  • UL/CUL
  • CE

Environmentally Friendly Yes
Environmental Certification RoHS
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Country of Origin China
Limited Warranty 1 Year