HP Serial Port Adapter, Serial, Black, Silver, Server, Business, 1 kg, 241.3 x 57.2 x 190.5 mm HP Serial Port Adapter. Output interface: Serial. Product colour: Black, Silver, Purpose: Server. HP segment: Business. Weight: 1 kg. Dimensions (WxDxH): 241.3 x 57.2 x 190.5 mm