HDMI Connector Types
Type A (HDMI® Connector): The most common and well recognised HDMI connector variant. Nineteen pin connector, with bandwidth to support all SDTV, EDTV, and HDTV modes. Compatible with DVI-D single-link connector.
Type B: Bigger 21 mm 29-pin connector for dual-link HDMI connectivity. Maximum pixel clock rate of 330MHz. Type-B HDMI connectors are virtually non-existent, as no dual-link HDMI consumer equipment has been released thus far.
Type C (HDMI® Mini Connector): Mini connector defined in the HDMI 1.3 specification, and intended for portable devices. Smaller than Type A plug, but with the same 19-pin configuration. The Type C Mini connector can be connected to a Type A connector using a Type A-to-Type C cable.
Type D (HDMI® Micro Connector): Micro connector defined in the HDMI 1.4 specification. Keeps the standard 19 pins of Types A and C but shrinks the connector size to something resembling a micro-USB connector.