I have an ~10-year-old hub (Surecom EtherPerfect 505ST if anyone's interested) that says "DC 7.5V" below its power connector. Unfortunately, I can't find the adapter, but I do find one that fits but outputs 12V. My question is: is a modern computer peripheral device that takes an adapter likely to be able to safely regulate down from 12Vdc to 7.5Vdc? Since it's an old bit of hardware I'm not terribly worried about losing it forever, but I have to weigh the risk of damaging it against the likelihood of success if I keep looking for the proper adapter.
(Or maybe I have found the proper adapter and the one that came w/the device supplies more than 7.5V)