I have an old US Robotics Courier V.Everything with V.34 external modem. I'm told it is a model 1224-00. It's an older modem, but it looks just like this newer 3453B:
Two questions, the minor one first:
1. The wall wart AC adapter is gone, but I'm pretty sure it was a 20VAC 500mA. (Incredibly, the info printed on the bottom of the modem doesn't identify the power requirements. I think the AC adapter was a "USR-20 1.015.1202".) Any good ideas on how to snag a replacement?
2. This old thing was a pretty good commercial modem in its day, with upgradability and stuff. Can it be upgraded to V.90 or V.92? (The USR Upgrade Wizard application won't help me because I don't have the AC adapter, so the Wizard can't "see" the modem. I don't want to bother buying a replacement wall wart if the modem can't be upgraded. What a catch-22.)