HP 3TK76AA, Serial, Business, 39.4 mm, 41.2 mm, 17.2 mm, 16 g HP 3TK76AA. Output interface: Serial. HP segment: Business. Width: 39.4 mm, Depth: 41.2 mm, Height: 17.2 mm. Package width: 490 mm, Package depth: 310 mm, Package height: 290 mm