NeweggBusiness - U.S. Robotics USR5670 Fax modem 56Kbps PCI Bus (Plug & Play) V.92 56K ITU standard V.90 56K ITU standard V.34 33.6K ITU standard Compatible with most ITU and Bell standards
Usb 2.0 Fax Modem 2 * Rj11 Port Dial Up 56k V.92 V.90 Caller Id Receive And Send Fax Support Windows 11 10 8 7 Linux - Pc Hardware Cables & Adapters - AliExpress
Amazon.com: U.S. Robotics Courier Usr3453c Analog Modem . Serial . 1 X Rj. 11 Modem . 56 Kbps "Product Type: Modems/Analog Modems" : Electronics
DSL-Warehouse
Zoom 3035 PCI Express Data/Fax Modem - PCI Express - 1 x RJ-11 Phone Line - 56 Kbps | Amazon price tracker / tracking, Amazon price history charts, Amazon price watches, Amazon price drop alerts | camelcamelcamel.com
Data Comm DL-56 56 Kbps External Modem w/ AC Adapter | RecycledGoods.com
Amazon.com: External Modem 56 Kbps : Electronics
Alpha AEMOD8 56Kbps External USB Modem Unit
56k Modem Experience Emulator | WIRED
Usb 2.0 Fax Modem 2 * Rj11 Port Dial Up 56k V.92 V.90 Caller Id Receive And Send Fax Support Windows 11 10 8 7 Linux - Pc Hardware Cables & Adapters - AliExpress
HAWKING PN580U Data/Fax Modem 56Kbps USB V.90 (down-stream up to 56,000 bps). V.34bis, V.32bis, V.32, V.22bis, V.23, V.22, V.21 Error Correction Protocol V.42 and MNP Class 2 to 4 Data Compression Protocol