It is written / printed on the label (for testing purposes I opened the mycloud case)
I found someone doing tests on exactly this hdd: https://www.reddit.com/r/DataHoarder/comments/49otf1/wd80ezzx_image/
“These are clearly Ultrastar He8 (Bulk Data Encryption (BDE) model) Motor lowered to 5400 rpm TLER Set to off (Can Turn on) Firmware is fully HGST and is just WD in name”
This would be great …!
