Amazon.com: Toshiba 4TB N300 NAS 3.5 Inch SATA Internal Hard Drive. 24/7 Operation, Supports 1-8 Bay Systems, 256 MB Cache, 180TB/Year Workload, 3 Year Warranty (HDWG440UZSVA) : Electronics
Amazon.com: Toshiba N300 8TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 GB/s 7200 RPM 256 MB Cache - HDWG480XZSTA : Electronics
Amazon.com: Toshiba N300 4TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 GB/s 7200 RPM 256 MB Cache - HDWG440XZSTA : Electronics
TOSHIBA N300 HDWG440XZSTA 4TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Retail - NeweggBusiness