Docking Station with Triple Pass-Through RF Antenna Connections for Getac K120 Convertible Laptop. Connectivity - USB: fully-powered USB 2.0 (3 total - 2 front facing, 1 on I/O panel), USB 3.0 (3); Ethernet: RJ45 (2); serial: DB9 (1); video: VGA (1), HDMI (1); dock input power: (1); rf: (3 SMA connectors).