Abstract: The present invention relates to a HDMI snap-in coupler, which comprises a circuit board, a first HDMI connection port module, a second HDMI connection port module, a top housing, and bottom housing. The first and second HDMI connection port modules are set on the circuit board. The top housing accommodates the circuit board, and the first and second HDMI connection port modules. The top housing has a first opening. The first HDMI connection port module is placed in the first opening. The bottom housing lodges in the top housing and has a second opening. The second HDMI connection port module is placed in the second opening. The present invention provides a HDMI snap-in coupler with double-side HDMI interfaces suitable for installing on current common socket panels (such as: information panels or multimedia information panels) without the need of modifying the design of the socket panels. Thereby, market universality and integration purposes can be achieved.