TOSHIBA S300 HDWT140UZSVAR 4TB 5400 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive - WHITE BOX Retail - Newegg.com
S300 Surveillance Hard Drive
Toshiba 4TB S300 3.5" Internal Hard Disk Drive SurveillanceI Internal Mechanical HDD 5400RPM 128M Buffer HDD For Video Recorder|External Hard Drives| - AliExpress