One question about WD40EJRX

I want buy a disk today, one question:

WD 4TB SATA6Gb/s 64M (WD40EJRX) is PMR or SMR?

PMR(Perpendicular Magnetic Recording),
SMRShingled Magnetic Recording)

Assuming it’s a WD Purple drive … then it’s CMR (Conventional Magnetic Recording) … aka PMR

@mag500t You may want to look at his too.

https://blocksandfiles.com/2020/04/14/wd-red-nas-drives-shingled-magnetic-recording/

Hello.
Tell me please what is WD40EJRX for China? This is analogue WD40PURZ?
Thanks.