The 6-DE-104/16-4750L-P is equivalent to the 6-DE-104/16 board (W-18), except that the overall board length is altered to 4.75 +/- .02 inches.
Options:
6-DE-104/16-4750L-P-S (female sockets only)
*6-DE-104/16-4750L-P-P (male pins only)
6-DE-104/16-4750L-P-T (pass-through connectors)