WD SN 770 users on iMac: Which brand of PCIe adapter are you using please?

[Australopithicus]

Since the oft recommended Sintech 2280 adapter for Apple slot to M slot is regarded by WD as incompatible, I need a recommendation from those of you with experience using SN770, to help me out with the name of a reliable brand of adapter. What works for you?

I intend putting the SN770 in a 2019 iMac. Long (2280mm)‚ or short (13mm) adapter OK with me.