Have a 6100-66 PowerMac. It came with a modem but, it is missing the power pack for it. The modem is a FastMac V.34. S/N#77608. It does not say anything about volts or anything else on it. Any help I thank you for. If I need to put more info. please post.
BTW from what I have read on this, it is a 486

BTW from what I have read on this, it is a 486