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VINNYW wrote:

Does anyone know, where i can fing the power adapter for the

R7800 — Nighthawk X4S AC2600

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Netgear does not sell replacement power adapters. Any generic transformer will work, as long as it has the right volts, enough amps and a tip with the right (+/-) polarity and dimensions. (Look at the label on your device or the old adapter.)

Some generic adapters come with a set of tips that will fit a range of different devices.

These things are pretty common, so first check to see if you have something compatible lying around. But as FURRYe38 says, try the usual suspects. Some will even list compatibility with various Netgear devices.