Dell Latitude E6420 XFR (Early 2011) - Manual (Page 62)

Dell ™ Latitude™ E6420 XFR Service Manual
Page 62
22. Carefully remove the HDMI Route Adapter from the HDMI connector on the motherboard.
23. Remove the bracket from the USB connector.
NOTE: HDMI Bracket and HDMI Route Adapter should be transferred to replacement system board assemblies.