![Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NE001) | Best Buy Canada Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NE001) | Best Buy Canada](https://multimedia.bbycastatic.ca/multimedia/products/500x500/138/13888/13888461.png)
Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NE001) | Best Buy Canada
![Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX : Amazon.ca: Electronics Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX : Amazon.ca: Electronics](https://m.media-amazon.com/images/S/aplus-media/vc/b9a6036b-19b6-4800-a94d-77aa3a5d498a.__CR0,0,800,600_PT0_SX800_V1___.jpg)
Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX : Amazon.ca: Electronics
![QNAP 4 Bay NAS TR-004-44W-US With WD40EFPX Western Digital Hard Drives Preconfigured RAID 5 Bundle - Newegg.com QNAP 4 Bay NAS TR-004-44W-US With WD40EFPX Western Digital Hard Drives Preconfigured RAID 5 Bundle - Newegg.com](https://c1.neweggimages.com/BizIntell/item/HD%20NAS%20&%20Storage/Network%20-%20Storage/22-099-170/1.jpg)
QNAP 4 Bay NAS TR-004-44W-US With WD40EFPX Western Digital Hard Drives Preconfigured RAID 5 Bundle - Newegg.com
![Amazon.com: WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4001FFSX : Electronics Amazon.com: WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4001FFSX : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71n++WwxSnL._AC_UF350,350_QL50_.jpg)
Amazon.com: WD Red Pro 4TB NAS Hard Disk Drive - 7200 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch - WD4001FFSX : Electronics
![Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX : Amazon.ca: Electronics Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD4003FFBX : Amazon.ca: Electronics](https://m.media-amazon.com/images/I/81Q6AQ-doEL.jpg)