Trendnet TU-S4. Host interface: USB Type-B, Output interface: RS-232, Host interface gender: Female. Product color: Black, Cooling type: Passive, Maximum cable length: 39.4" (1 m). Connector 1 gender: Female, Connector 2 gender: Female, Connector 1 form factor: Straight. Power consumption (typical): 3 W, Output voltage: 5 V, Output current: 1 A. Windows operating systems supported: Windows 10, Windows 7, Windows 8, Windows 8.1, Server operating systems supported: Windows Server 2003, Windows Server 2008, Windows Server 2012
Trendnet TC-NT3. Battery voltage: 9 V. Weight: 5.08 oz (144 g), Dimensions (WxDxH): 4.61 x 2.64 x 1.06" (117 x 67 x 27 mm). Cables included: LAN (RJ-45)