As for the dongle itself, well, it’s a big, blue, plastic
triangle. It’s big: much bigger than the Square card reader. It’s
blue: matching with PayPal’s own branding and coming in two tones,
neither of which is very appealing. It’s plastic: presumably these
were prototypes we were looking at, but we’re not impressed with
the build quality at all. There are big seams where the parts come
together and the plastic itself has a finish that lacks the subtle
elegance of the Square reader.
Really looks like a rough hack.