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Green PCI dial-up modem card with two RJ11 ports and gold edge connector

US Robotics

US Robotics USR5660A PCI Dial-Up Modem 56K V.92

SKU CH-VXP3-W1E7V MPN USR5660A

A PCI dial-up modem with two RJ11 ports supporting V.92 and V.90 standards up to 56Kbps

  • Interface typePCI Bus (Plug & Play)
  • Cable interface2 x RJ11 ports
  • Supported standardsV.92 56K ITU standard V.90 56K ITU standard V.34 33.6K ITU s
  • Maximum transmission rate56 kbit/s
  • Product typeDial-Up Modem
  • Key featuresFeature-rich affordability Ideal for home use Send e-mail an
  • 56Kbps dial-up speed via V.92 ITU standard
  • PCI plug-and-play interface installs in three steps
  • Dual RJ11 ports support simultaneous fax and voice
  • V.44 and V.42bis compression accelerate data throughput
  • Class 1 fax with V.17, V.29, V.27ter standards

PCI Dial-Up Modem for Legacy Lines

The US Robotics USR5660A is a PCI bus dial-up modem designed for desktop PCs that still connect through analogue telephone lines. It suits home users who need basic internet access, fax capability or V.80 video conferencing on a V.92 56K connection.

Plug-and-Play Install with Common Pitfalls

The card uses a standard PCI slot and ships with a resource disk, RJ11 cable and manual for a three-step setup. Installers often forget to disable any onboard modem in BIOS, which creates a resource conflict, or they omit the telephone-line surge protector that the manual recommends.

Steady 56K Operation Within Line Limits

Under continuous use the modem holds to the ITU V.92, V.90 and V.34 standards with V.42, MNP2-4 error control and V.44, V.42bis, MNP5 compression. Real-world throughput stays bounded by the 56Kbps ceiling and the quality of the copper pair, so sustained sessions do not exceed the rated maximum.

How it compares

Measured against everything we stock in Cable Modems & Gateway Routers, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 94% of the 122 comparable items (median $120.99).

Specifications

Product
Brand nameU.S. Robotics
Model nameUSR5660A
Product typeDial-Up Modem
Connectivity
Supported standardsV.92 56K ITU standard
V.90 56K ITU standard
V.34 33.6K ITU standard
Compatible with most ITU and Bell standards down to 300 bps
V.80 video conferencing support
V.42, MNP2-4 error control
V.44, V.42bis, MNP5 data compression
Fax: EIA 578 (Class 1) with V.17, V.29, V.27ter
Ports & slots
Interface typePCI Bus (Plug & Play)
Cable interface2 x RJ11 ports
Size & build
Shipping weight0.07 kg
Package size203 × 152 × 37 mm
In the box
In the boxUSR5660A
Resource Disk
RJ11 Cable
Manual
Other Accessory
More details
Maximum transmission rate56 kbit/s

Questions about this item

How do I verify the modem is operating at 56Kbps after installing the USR5660A?

Check the connection speed reported by your dial-up networking software; it should show a rate up to 56Kbps when the V.92 handshake completes successfully.

What comes with the USR5660A and what must I provide separately?

The box contains the modem card, a resource disk, an RJ11 cable, a manual and an accessory; you must supply a desktop with a free PCI slot and an active telephone line.

Which version of the USR5660A should I choose for V.92 call-waiting features?

The USR5660A is a single model supporting V.92, V.90 and V.34 standards, so the listed version already includes call-waiting and modem-on-hold capabilities.

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