Product review (5 stars): Look no further, this is the cable you want! 5.0/5.0 stars!!!
I looked for hours on Amazon at dozens of cables (I was in your shoes, so let me save you some time!). Look no further, this is the cable you want!

Pros:
4-Wire prong connector...check!
Great insulation on wires...check!
Not too long, not to short....check!
Universal terminal connectors...check!
UL-listed wing-style strain relief...check!
Rated for 240v and 30A minimums....check!

This is by far the best value (under $20 for a 6 ft, 4-wire dryer cable WITH UL-listed strain relief, heck yes!)

Only cons:
Individual color cables are a bit stiff, but I was able to bend them when needed to relieve strain and look nice
Strain relief screw holes were a bit small, requiring "manual tapping" from the self-tapping screws, which was difficult, but not impossible. Recommend screwing the two screws into the two metal brackets of the strain relief BEFORE installing on cable. Do not over-tighten!

Just order this one, you'll be happy you did, I promise!

Regards,

Matthew Schneider