![Amazon.com: Western Digital 22TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD221KFGX : Electronics Amazon.com: Western Digital 22TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD221KFGX : Electronics](https://m.media-amazon.com/images/I/71lj8eel7rL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 22TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD221KFGX : Electronics
![Real-time bandwidth of SMR vs. CMR disks when performing random writes. | Download Scientific Diagram Real-time bandwidth of SMR vs. CMR disks when performing random writes. | Download Scientific Diagram](https://www.researchgate.net/publication/339923370/figure/fig1/AS:944375282561032@1602168021918/Real-time-bandwidth-of-SMR-vs-CMR-disks-when-performing-random-writes.png)
Real-time bandwidth of SMR vs. CMR disks when performing random writes. | Download Scientific Diagram
![Which Seagate and WD drives use SMR technology - a listing of the naughty ones to avoid for NAS use! - Lounge - Unraid Which Seagate and WD drives use SMR technology - a listing of the naughty ones to avoid for NAS use! - Lounge - Unraid](https://upload.forums.unraid.net/live/monthly_2023_02/Seagate-CMR_SMR.jpg.b1c82b8c47c372f41887170af9d22a08.jpg)
Which Seagate and WD drives use SMR technology - a listing of the naughty ones to avoid for NAS use! - Lounge - Unraid
![Seagate IronWolf, 10 TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5,400 RPM, 256MB Cache, for RAID Network Attached Storage, 3 year Rescue Services (ST10000VN0004) : Amazon.co.uk: Computers & Accessories Seagate IronWolf, 10 TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5,400 RPM, 256MB Cache, for RAID Network Attached Storage, 3 year Rescue Services (ST10000VN0004) : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71lZ1Zy7liL._AC_UF1000,1000_QL80_.jpg)