GL-X750 power connector

Replying to another thread about the X750 reminded me of a question I’ve been meaning to post. I could do with buying a replacement power adaptor for home (with a longer cable than the short one bundled with the router) so I can mount it in a more convenient place.

What is the correct size of the ‘barrel’ power connector on the GL-X750 power supply? It looks like a 3.50mm/1.35mm outside/inside diameter one, but there are lots of very close variants available, e.g. 3.5/1.4, 3.5/1.3, 3.5/1.25, etc. Even having the plug in my hand, I can’t measure the inside diameter with that kind of accuracy! :see_no_evil:

What is the correct size of the ‘barrel’ power connector on the GL-X750 power supply?

  • outside/inside 4.0/1.7
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Thanks, that’s wider outside diameter than I thought; it was definitely worth asking!

Is there any special reason a “normal” sized 12V barrel jack couldn’t be used? Almost every other 12V device I have uses a common jack and I can share power supplies as long as they have the appropriate amperage rating. The Spitz is my one “special” device that needs its own cable, very inconvenient at times.

Be careful or you will blow your devices up - amperage rating is not important - voltage is the thing that needs to match.

We’ve already established we’re dealing with 12V power here, but thanks for playing.

Reality: any amperage over what the device requires is fine, and most “12V” devices will accept a voltage range between 9-18V. This is not a universal rule, I certainly wouldn’t do it unless I knew it could handle it, but a sufficiently robust buck-boost regulator won’t care. Maybe read (and quote) my entire post next time before posting your hot-take.

It wasn’t obvious to me and I hope I helped save other readers devices by making it clearer.
Sorry that you are on the sensitive side and took it as an insult!

You know you almost fooled me, I was almost ready to apologize for mischaracterizing your initial post before I reread your reply, but you just couldn’t resist that last jab, eh? It’s pretty clear what your intention was, and I’m sure it wasn’t to help anyone. So again, thanks for playing but you won’t get an easy capitulation from me, I don’t suffer low-effort trolls.

A quick postscript in case anyone finds it useful: the Amazon Echo Dot is a 12V device with a 4.0/1.7mm barrel connector, the correct polarity and similar current demand, so the mass-market replacement adaptors available for that also work nicely with the X750.

@ChrisW Thanks for the hint with the Amazon Echo Dot adapter compatibility :v: That opened new results on local market searches! Let’s see if the car charger with 12V DC stabilizer and the USB adapter with 5V DC to 12V DC work …