benjojo.co.uk

benjojo posted 19 Apr 2026 21:04 +0000

While travelling last week I came across this in my hotel room, this seems like a fantastic way to have your USB C powered device's chassis float to 120V live if you use it wrong enough in the dark

A dual 120V (USA) plug outlet, but in the middle is a USB A and a USB socket, but the USB-C seems almost the same size as the 120V live pins

noisytoot@berkeley.e.. replied 19 Apr 2026 21:13 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo are there at least shutters?

benjojo replied 19 Apr 2026 21:15 +0000
in reply to: https://berkeley.edu.pl/objects/bce1cc04-4671-45f9-96e6-bae5a6bf0153

@noisytoot I.. don't think there were

TGG303@cyberplace.so.. replied 19 Apr 2026 21:15 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo their scared little faces freak me out.

benjojo replied 19 Apr 2026 21:16 +0000
in reply to: https://cyberplace.social/users/TGG303/statuses/116433442086249360

@TGG303 The American outlets really do score #1 on the "face expression" leader board

benjojo replied 20 Apr 2026 08:21 +0000
in reply to: https://cyberplace.social/users/TGG303/statuses/116433845379297698

@TGG303 ground!

roguelazer@hachyderm.. replied 19 Apr 2026 21:18 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo The "TR" marking means that it's tamper-resistant and has a shutter that won't open unless power and neutral are both pressed open at the same time, so you should be safe unless you blindly stab *two* USB-C cables into there at once.

benjojo replied 19 Apr 2026 21:23 +0000
in reply to: https://hachyderm.io/users/roguelazer/statuses/116433455392707418

@roguelazer Aaah! Good to know, I mean I am not sticking my devices into such wall sockets anyway, but still good to know for other souls out there

lanodan@queer.hackti.. replied 20 Apr 2026 12:25 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo For once this is one where I'd really want the child-safety thing to be there.

ozeng@aus.social replied 20 Apr 2026 13:20 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo @gorplop I’ve long disliked the idea of normalising plugging USB plugs into the same fixture as mains power plugs but this proximity is insane.

Gotta give Darwin a chance I guess

kabel42@polymaths.so.. replied 20 Apr 2026 13:50 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo ahh, a practical application for xkcd 2493

inpc@go.mxtthxw.art replied 20 Apr 2026 14:02 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/nXCrkB2K5cVQt835XL

@benjojo Ooh that looks fun.