HP 3TK78AA, USB 3.2 Gen 1 (3.1 Gen 1), China, Business, 39.4 mm, 38.2 mm, 19.5 mm HP 3TK78AA. Output interface: USB 3.2 Gen 1 (3.1 Gen 1). Country of origin: China. HP segment: Business. Width: 39.4 mm, Depth: 38.2 mm, Height: 19.5 mm. Package width: 495 mm, Package depth: 325 mm, Package height: 293 mm