HiGoing Car Cup Charger, USB Car Charger 12V/24V Multi Function Car Power Adapter with Dual USB Ports + 2-Socket Cigarette Lighter Splitter for iPhone iPad, Android Samsung, GPS, Dashcam

All ports work. The voltage meter is a nice touch, but it also will tell how much current the USB ports are drawing as well. Lighting is not too bright so not a distraction during night driving. Simple design and functions exactly as advertised.

Good

I love it.i used them to hold my fm transmiters on car.work great

Just what I needed to power all my dashboard electronics. GPS, Valentine radar receiver and dash camera are all powered and I still have a port available for my phone.The only thing that would make this better is a beefier male plug to hold it in place better.

Works great. the only downfall that pushed it to a 4 star is that it is slightly smaller than a regular cup holder in my Sante FE. have to wedge something beside it so it doesn't rattle around. Back cup holders must be smaller, it fits them.

Work great. Smaller than your typical cup holder so you need to add padding for a tight, vibration-free fit.