US Robotics Modem 56k "Sportster Flash" - from circa 1995 : r/vintagecomputing
US Robotics USR5686G - modems (RS232 DB25, 0 - 50 °C, 20 - 80%, Serial Port Phone Line Serial Cable, 165.1 x 95.25 x 33.02 mm, -20 - 70 °C) : Amazon.co.uk: Computers & Accessories
U.S. Robotics SureConnect ADSL Wireless Gateway Model 9106 Review | thinkbroadband
US Robotics 0459 Fax Modem Sportster with X2 56K External with OEM Power Supply | eBay
Amazon.com: US Robotics USR843453C External 56K V.92 Global Dial-up Business Modem : Electronics
U.S. Robotics V. Everything Modem Model 34538 Courier 56K Business 0735 3453 ATT | eBay
US Robotics USR3453B Courier 56K Business Modem with V.92
3C015630D US Robotics | US Robotics ADSL DB25, RJ11, RS232 Wired Modem, 152.4 x 114.3 x 34.9mm | 472-3634 | RS Components
U.S. Robotics USR5686G V.92 Serial Controller Faxmodem - Newegg.com