![Amazon.com: Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX : Electronics Amazon.com: Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX : Electronics](https://images-na.ssl-images-amazon.com/images/I/71XBwTsLXiL._AC_UL600_SR600,600_.jpg)
Amazon.com: Western Digital 3TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD30EFRX : Electronics
![Amazon.com: Western Digital 2TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD20EFZX : Electronics Amazon.com: Western Digital 2TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD20EFZX : Electronics](https://m.media-amazon.com/images/I/71Z8kfqA8GL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 2TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" -WD20EFZX : Electronics
![Amazon.com: WP Expanse 18TB 7200 RPM 512e SATA Gen3 3.5-inch HDD | ECC PLP CMR | Enterprise Data Center SAN Hard Disk Drive - WESA5SLC0180D (Renewed) : Electronics Amazon.com: WP Expanse 18TB 7200 RPM 512e SATA Gen3 3.5-inch HDD | ECC PLP CMR | Enterprise Data Center SAN Hard Disk Drive - WESA5SLC0180D (Renewed) : Electronics](https://m.media-amazon.com/images/I/61xq7mHLKuL.jpg)
Amazon.com: WP Expanse 18TB 7200 RPM 512e SATA Gen3 3.5-inch HDD | ECC PLP CMR | Enterprise Data Center SAN Hard Disk Drive - WESA5SLC0180D (Renewed) : 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)