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56K Dial-up Modems

USRobotics® 56K Dial-up modems include the features and reliable connections needed for highly secure business transactions and critical secondary connections. USRobotics offers all types of modems from controller based to winmodems as well as all form factors from PCIe to USB to Serial. Mouse over the product options below to see how we can get you connected.

Top Selling Modems

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Courier® 56K* Business Modem
3453c

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56K* USB Modem + Fax/Voice
5637

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56K* Serial Faxmodem
5686G

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56K* PCIe Faxmodem
5638

Enterprise/Business Modems

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Courier® 56K* V.92 Business Modem
3453c

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56K* USB Modem + Fax/Voice
5637

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56K* V.92 External Modem + Fax
5686G

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56K* V.92 External Modem + Fax 20 Pack
5686G-VAR-20

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V.92 Low Profile PCI Modem
2980-OEM
 

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56K* V.92 PCI Performance Pro 20 Pack
5610C-VAR-20

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56K* PCIe Modem + Fax
5638

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56K* V.92 Embedded Serial Modem
NEW 56ma

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Internal OEM Modems
 

Internal Modems

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V.92 Low Profile PCI Modem
2980-OEM

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56K* V.92 Internal Performance Pro Modem
5610C

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56K* V.92 Internal PCI Modem + Fax
5699b

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56K* V.92 Internal PCI Modem + Fax
5670
 

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56K* PCIe Modem + Fax
5638

 

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56K* V.92 Embedded Serial Modem
56ma

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Internal OEM Modems

External Modems

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56K* V.92 External Modem + Fax
5686G

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56K* USB Modem + Fax/Voice
5637

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56K* USB Softmodem + Fax
5639

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56K* USB Mini Modem + Fax
5635

Modem Accessories

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Courier® Business Modem Power Supply
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Courier Accessory Kit: IEC
3453CIEC-ACC

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Courier Accessory Kit: UK
013453A-ACC





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Courier Accessory Kit: AU
043453A-ACC





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Courier Accessory Kit: K/A/B
053453A-ACC






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Courier Accessory Kit: EU+Ad
243453A-ACC






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Courier Accessory Kit: EU
563453A-ACC

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Courier Accessory Kit: I/SA
723453A-ACC

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56K* V.92 External Modem Power Supply
5686-acc

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USB-to-Serial Cable Modem Adapter
5700

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USR Call Director Telephone Switch
4000

region_icon-trans.gifNOTE: Products vary by region, all products listed within this site are intended for use in the United States. To find products outside the US visit our Europe/Middle EastAsia Pacific Rim, or Latin American sites.


Reliable and Secure 56K Business Modems

Powerful enough to meet the needs of large corporations, yet simple enough for small office use, our Business Modems are specifically designed for 24x7 environments. Featuring carrier loss redial, dial-back security and advanced USRobotics® line probing technology which identifies the most efficient route from your ISP or network to your computer, these award-winning products ensure secure, fast, reliable data transfers.

While modems are typically thought of as providing connections to the Internet (for customers that don’t have broadband), there are many other data transport requirements where modems are ideal. Many Point of Sale (POS) applications for credit card and check verification use modems and because of the security, fast connection speeds, and reliability built into USRobotics modems they are usually the modem of choice. Features like carrier-loss redial, used to re-establish a lost connection and dial-back security provide enhanced security for our business modems. And every USRobotics analog modem uses advanced line probing technology, so you'll achieve the fastest analog downloads possible.

The PCIe low profile modem is ideal for a POS system. The Internal Business modems, including the Low Profile PCI Modem, are ideal for embedded systems or buying in bulk for mass installations. With modems available in external (Serial and USB), and internal (PCI low, and standard profile), with fax capabilities, and even voice functionality, it is certain that we have a modem to meet your needs. And, if a serial modem, like our flagship Courier 56K Business Modem, is the best solution, but you need to connect via USB, we have a USB to Serial cable to facilitate your application.