This is a custom very high quality “Green Brush” avionics connector set with 48 pins organized into 3 rows of 16, one end will be the PCB pigtail ends the other side will include 3-4” of wire.  Please note from the picture one of the wire side terminals is missing.  Overall dimensions are 2.8125″ (L) by .875″ (W) by 1.125″ (H) (both connectors together)

Here is a reference page that has more info on “Green Brush” connectors.

https://www.amphenol-socapex.com/en/products/connecteurs/board-level-connectors/greenbrush

We have a qty of these, if you have a good project for them Grab them all, there will never be any more at this price!

There is a best offer on this listing for buyers wishing to purchase in quantity not for one unit