Thank you for your advice. I was wondering if you might know something else. What can I search (wording) on amazon or wherever to find a double row 2.54mm cable end (like the picture you posted, but double rowed (2x20 or 2x18 or something like that? I want this in order to take the 1x1 housing ends off of a ribbon cable and insert them into this double row housing in order to mate with the double row of pins on the arduino mega 2560. When I try search, however it seems like all I can find are receptacles to solder to a board, not cable ends. I know that these are made, but the kit that I bought only has up to a 2x4 size of dupont cable end housing.