This device I received is sky blue, not the more traditional shade of blue that is pictured. I would have preferred the black or red over this particular blue. That said, I plugged it into the QC 3.0 adapter I purchased along with the device, and it charged my 21700's at 2A. The included USB A to C cable seems to be of good quality. It's a good price for a 2A charger and the powerbank feature is a nice bonus. Shipping was fast.