Unfortunately performance isn't the only concern. The controller used in the "v4" configuration didn't work on Gigabyte Z390 boards (read up kn the GB forums about it).
I reached out to ADATA at the time and they basically responded "we don't care, go to your retailer to solve your problem, it's all in your heads".
Dear Customer,
Thank you for supporting ADATA products.
SX8200NP follows the NVMe ™ (Nonvolatile Memory Standard) protocol,run with PCI-Echannel. Please check your pc, if still the same, Please contact with your dealer of the shop where you bought it for Replacement Swap/Repair service. If you need our help, please contact us again.
Best Regards,
ADATA Technology
At the time Gigabyte also didn't care to lift a finger.
Good times. Stay away from ADATA. Shady business practices.