![Amazon.com: Seagate Pipeline HD 500GB 5900RPM 8MB Cache SATA 3.0Gb/s 3.5in Internal Hard Drive - ST3500312CS (for Surveillance System, CCTV DVR) - 3 Year Warranty (Renewed) : Electronics Amazon.com: Seagate Pipeline HD 500GB 5900RPM 8MB Cache SATA 3.0Gb/s 3.5in Internal Hard Drive - ST3500312CS (for Surveillance System, CCTV DVR) - 3 Year Warranty (Renewed) : Electronics](https://m.media-amazon.com/images/I/610huQ3YlcS._AC_UF894,1000_QL80_.jpg)
Amazon.com: Seagate Pipeline HD 500GB 5900RPM 8MB Cache SATA 3.0Gb/s 3.5in Internal Hard Drive - ST3500312CS (for Surveillance System, CCTV DVR) - 3 Year Warranty (Renewed) : Electronics
![Amazon.com: Western Digital AV-GP WD5000AVDS 500GB 32MB Cache 5400RPM SATA II 3.0Gb/s 3.5 Internal Hard Drive (CCTV DVR, PC, Mac) (Renewed) : Electronics Amazon.com: Western Digital AV-GP WD5000AVDS 500GB 32MB Cache 5400RPM SATA II 3.0Gb/s 3.5 Internal Hard Drive (CCTV DVR, PC, Mac) (Renewed) : Electronics](https://m.media-amazon.com/images/I/61qlkFYk11L.jpg)
Amazon.com: Western Digital AV-GP WD5000AVDS 500GB 32MB Cache 5400RPM SATA II 3.0Gb/s 3.5 Internal Hard Drive (CCTV DVR, PC, Mac) (Renewed) : Electronics
![MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - w/ 2 Year Warranty MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - w/ 2 Year Warranty](https://cdn3.volusion.com/ovay6.hxgv9/v/vspfiles/photos/G01-1189-4.jpg?v-cache=1527272238)
MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - w/ 2 Year Warranty
![MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - 2 Year Warranty - Walmart.com MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - 2 Year Warranty - Walmart.com](https://i5.walmartimages.com/asr/58ed3f9c-c53a-4697-bf7a-505df360fefb.630d109dafd5d0256e14585e6be29361.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - 2 Year Warranty - Walmart.com
![Amazon.com: Western Digital WD AV-GP 500GB 32MB Cache SATA 3.0Gb/s 3.5inch (CCTV DVR, PC) Internal Hard Drive (Low power, Quiet) -w/1 Year Warranty : Electronics Amazon.com: Western Digital WD AV-GP 500GB 32MB Cache SATA 3.0Gb/s 3.5inch (CCTV DVR, PC) Internal Hard Drive (Low power, Quiet) -w/1 Year Warranty : Electronics](https://m.media-amazon.com/images/I/61d0YokQU1L.jpg)
Amazon.com: Western Digital WD AV-GP 500GB 32MB Cache SATA 3.0Gb/s 3.5inch (CCTV DVR, PC) Internal Hard Drive (Low power, Quiet) -w/1 Year Warranty : Electronics
Piczel 5208 8 CH H.264 Codec DVR with 500GB HDD, Internet, 3G/4G Smartphone Monitoring, E-mail and Text Message Alerts - Sam's Club
![Amazon.com: MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - w/ 2 Year Warranty : Electronics Amazon.com: MaxDigitalData 500GB 8MB Cache 5900PM SATA 6.0Gb/s 3.5" Internal Surveillance CCTV DVR Hard Drive (MD500GSA859DVR) - w/ 2 Year Warranty : Electronics](https://m.media-amazon.com/images/I/61GefokUiXL._AC_UF894,1000_QL80_.jpg)