You have your perfect IDC connector, now what cable should you use? When choosing the cable the biggest factor you need to look for is pitch. The cable of a 2 row+ connector needs to be half the pitch. The reason the cable needs to be half is that this type of IDC connector has staggered pins.
Here is an example on Digi-Key part number 1658526-4-ND (TE part number 1658526-4, the best place to see the staggard pattern is on the strain relief part: