Quoted from nerdygrrl:GPE seems to be out of stock on the 40 pin
It looks like the 09-52-3102 'Connector, 0.156", Receptacle, 10-Pin Bottom Entry' is obsolete and replaced with part number 09-48-2106.
https://www.greatplainselectronics.com/proddetail.asp?prod=09-48-2106