VGA Matrix 4 in 2 out is a manual switch boxes. It is an effective and convenient way for simple switching of commonly used data lines for VGA output. Features a sturdy， shielded metal box and a user friendly switch. All connector pins are fully populated and wired straight through. Features: 4 switch mainframe computers and assigned to the 2 synchronous output display devices 250 MHZ bandwidth Suitable to be applied to the securities market， school， hotel and etc... Input interface: 4 VGA input 15 HDF (female) interface. Output interface: 2 VGA synchronous output 15 HDF (female) interface. RGB analog channel: 250 MHz Support the resolution: 1920 X 1440. Power supply: DC 9V (included) No need driver installation， plug and play Casing : Metal Shielded metal box provides durability and helps prevent EMI/RFI Connectors are fully populated and wired straight through to insure compatibility Connectors : 4 X VGA HD15 Female Input; 2 X VGA HD15 Female Output Color : Black Package Content : 4 in 2 out VGA Switch Matrix Video Splitter (Note 1 : Photo attached is for reference only， it may be slightly varied in items of colour， shape from the actual item delivered from time to time Note 2 : This unit does not include any VGA Cables and VGA Cables need to be purchased separately for the amount of devices connected to the switch. Click VGA Cables at different length : 5m， 10m， 15m.