A Micro connector defined in the HDMI 1.4 specification[51][54] keeps the standard 19 pins of types A and C but shrinks the connector size to something resembling a micro-USB connector.[55] The type D connector is 2.8 mm ?? 6.4 mm, whereas the type C connector is 2.42 mm ?? 10.42 mm;[56] for comparison, a micro-USB connector is 2.94 mm ?? 7.8 mm and USB Type A is 11.5 mm ?? 4.5 mm. them8rix