[HDD] Seagate BarraCuda 8TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (186-36 =150 or 18.75/tb)[Amazon]

Yup. SMR. Know what you’re getting.

I use these for offsite backups but too slow to use for main storage.

I buy all used SAS HGST drives off of eBay now for about $50 each. Never had one die and got 4 on the shelf if one eventually starts going.