Best LPS for Xfinity modem

I am trying to get an LPS to run my Xfinity modem, but I don't know what voltage LPS to get. Does anyone know? 7v 9v?

thanks, Jay

chungjh12-22-2021 7:02pm

chungjh OP Details Discussions Posts This discussion Message User 265 posts 12-22-2021 at 10:25pm Copy Comment URL Report Comment Edit Delete I don't see anything written on the box anywhere. Also, there is no power adapter-just a cord directly into the outlet.
rsf507 Details Discussions Posts This discussion Message User 2,401 posts 12-22-2021 at 11:42pm Copy Comment URL Report Comment Edit Delete Yup I have one and initially bought an iFi with multiple power adapters. Come to find out they use a very unique cord into the modem directly, nothing worked.
chungjh OP Details Discussions Posts This discussion Message User 265 posts 12-23-2021 at 01:09am Copy Comment URL Report Comment Edit Delete rsf507 That is what I was afraid of.
auxinput Details Discussions Posts This discussion Message User 2,920 posts 12-23-2021 at 03:48pm Copy Comment URL Report Comment Edit Delete I don't see anything written on the box anywhere. Also, there is no power adapter-just a cord directly into the outlet. Be careful with items like this. If there isn't an adapter, then it is likely the power supply is actually inside the modem and the power cord is just a normal A/C power cord. The AppleTV is another similar item where the switching power supply is inside. That means the AppleTV cannot be upgraded with a linear power supply at all.
Post removed Dec 23, 2021