Read...
Rocket 4 FULLY saturates PCIe 3.0
You are putting arbitrary standards in place for no reason. They are perfectly good on there own, you don't need to Raid 0 them. I am NOT saying they fully saturate PCIe 4.0, what I am saying is they need PCIe 4.0 to reach their full speed.
5000 MBps read in PCIe 4.0
vs
3400 MBps read in PCIe 3.0
Your claim that it's a bad 4.0 drive is completely wrong. You are gaining 1600 MBps read.
I paid £169 for my 1TB Sabrent Rocket 4
A 980 Pro 1TB costs £220. £50 more (about 30% more than I paid) for 7000MBps read for 40% more read speed... but here is the kicker. Xbox Series X (read Direct Storage API target) is 4.8GBps, so we are not going to see much of a gaming increase from that £50.