Thanks Camie but all my Sata ports are full. I have a crucial MX200 already. Have my eye on a Corsair NVMe MP510 1tb with 1,800,000 MTBF and 1700 TBW @ £104 from Ebuyer. I know I wont get the speed but the endurance and 5 year warranty are very attractive. I need to sleep on it.
I don't know how many PCI-E slots you have populated on your board, but check that one do not conflict with the NVMe connector.
ii am happy with my corsairs,, if i went for a larger capacity NvME then I would get a case to convert my old one into a USB drive.
Adrian
Desktop machine Ryzen powered with windows 10 , reluctantly.
Plusnet FTTC