كابل USB إلى مقبس 2.1mm مع مزود طاقة رافع DC-DC 12V

I was pleasantly surprised this little cable actually delivers a steady 12V—my old webcam that kept dropping out is now working perfectly. The step-up converter is neatly built into the cable itself, so there's no bulky extra box to hide behind the desk.

I've been using this to power a small LED strip that needs 12V, and it works perfectly straight from my laptop's USB port. The built-in step-up converter is impressively compact and doesn't get hot at all.

Plugged this into a USB power bank to run an old router during a power cut, and it worked perfectly. The 12V output is stable and the built-in converter means no extra bulky adapter needed. Really handy for powering small devices away from a wall outlet.