This is an Keysight HP Agilent 44727-66512 
44721A 16-Channel Digital Input with Totalize and Interrupt for 3852 & 3853 data acquisition and control system 

VXI-B Size

This is a factory part. Our stock of HP Agilent parts come to us directly from HP's Loveland facilities.

Sourced DIRECTLY from Agilent in Loveland in 2005 when all assets were sold off. This is a factory test part. It was not sold or returned from a customer.