✧✦Catherine✦✧Feb 28

pov: you wake up to receive a package with a vacuum chamber and discover that the vendor is a crackhead and a menace to society

this is a vacuum chamber. the power supply that comes with it has a type-C connector and it puts 12V on Vbus unconditionally. the pump works off both 5V and 12V, so it can pull vacuum off a normal type-C power supply. but the solenoid release valve (that lets you open the chamber once you're done) requires their illegal type-C-shaped power supply. also, not only does the chamber not support PD negotiation, it does not even have a CC pulldown.

to add insult to injury, it's using a NEMA 1-15P plug.

Show threadSnowFoxFeb 28
@whitequark It's mindboggling that USB C is somehow cheaper(?) than a barrel jack.
Show thread✧✦Catherine✦✧Feb 28
@snowfox I don't even know why they chose to build it this way. I think they wanted a right angle connector and right angle barrel jacks are pretty rare?..
Show threadSnowFox

@whitequark They don't seem any rarer than RA USB C (which I don't think I've come across); searching for "12v power supply" gets https://www.aliexpress.com/item/1005007264933490.html which has a RA connector as one of the options pictured.

I think it's common on some laptops?

Netzteil Adapter 220V AC DC 5V 6V 8V 9V 10V 12V 13V 15V 24V Universal Ladegerät 1A 2A 3A 5A 6A 8A 10A EU UNS Für LED Treiber - AliExpress 13

Smarter Shopping, Better Living! Aliexpress.com

aliexpress.
Feb 28 at 4:03pmWeb