Tiny form factor. Formidable charging ability (300w). Can take a range of dc input voltage for supply power. Pictures pretty much tell the whole story. No I do not have mammoth hands. It is only about 3.5”x3.5”. The input and output are both xt60 connectors. Helps avoid bullet connectors that bump eachother (and short) when rushing or imprecise. Will update someday with charging/usage impressions.