My current one reads SAMSUNG MZVL21T0HCLR-00BH1 and is built into a quite new work laptop. I can't get below around 250us avg.
On my older system I had a WD_BLACK SN850X but had it connected to an M.1 slot which may be limiting. This is where I measured 1-2ms latency.
Is there any good place to get numbers of what is possible with enterprise hardware today? I've struggled for some time to find a good source.