Shunyata struggle

[longgone]

Hello... I am trying to learn the hierarchy of the Shunyata cables.
For now, the power cords.
I am at the entry level.
I bought what I thought were Venom power cords. Printed on the end that connects to the audio gear is 'Diamondback' and '15A'. These PCs look like the Venoms in the pictures on the Shunyata sight. They are blue with the white stripe and the clear blue plugs at the ends that allow you to see the inside connections.
I thought they were supposed to be 20A and I wasn't thinking Diamondback.
I am new at cables and trying to learn about the Shunyatas.
Are Venoms, Diamondbacks?
Why would they be 15A?
I was expecting 20A.
I don't see any mention of Diamondbacks or Venom 15A, on the Shunyata sight, that appear to be Venoms.
Thank you.