This is a Maretron FA-CF-90, it is a field installable right angle connector and it's what I need to finish the install of Maretron DSM250 the instrument display in my cockpit completing all the critical electronics systems.
NMEA 2000 connectors are keyed, which means when you're mating this right angle to a device, the angle might end up pointing up, down, left, right; who knows. The field installable connector can be rotated as you assemble it (or that's what support told me) so that YOU can choose which direction the cable leads off from the connector.
I still have two tank level meters to install and I want to upgrade the NMEA 0183 1980's depth transducr to a combo Depth, Speed, Temp instrument and NMEA 2000, but when this bad boy arrives and I get the cockpit display installed we'll have reached a pretty major milestone and I will feel very cool!
God Speed USPS, bring my baby to me!!