PCIE signal extension line based on HDMI line transmission

The utility model is applicable to the field of signal extension lines, and provides a PCIE (peripheral component interface express) signal extension line based on HDMI (high-definition multimedia interface) line transmission, which comprises a plug board provided with a PCIE golden finger at the bottom and used for being plugged in a PCIE slot, a first HDMI socket arranged on the plug board, arranged on the outer side of the plug board and connected with the PCIE golden finger through a printed circuit, and a second HDMI socket arranged on the outer side of the plug board and connected with the PCIE golden finger through a printed circuit. The adapter plate is provided with an adapter interface and used for testing a PCIE interface, the second HDMI socket is arranged on the adapter plate and arranged on one side of the adapter plate and connected with the adapter interface through a printed circuit, and the first HDMI socket and the second HDMI socket are connected through an HDMI transmission line with HDMI