 "WD Purple WD10PURX - Surveillance hard drive 1TB" " WD 1TB Internal Desktop Hard Drives CDWG.com
"WD Purple Surveillance Storage offers exclusive AllFrame technology to bring you premium reliability and peace-of-mind when installing your home or small to medium business security system. WD Purple's exclusive firmware upgrades work with ATA streaming to reduce error pixilation and video interruptions that occur when desktop hard drives are incorrectly used as storage in security systems. WD Purple Surveillance Storage is built for 24/7, always-on, high-definition surveillance security systems that use up to eight hard drives and up to 32 cameras.You wouldn't use a bicycle to transport cargo across the country because it's not the right tool for the job. You also shouldn't use a desktop hard drive in your surveillance security system because it wasn't designed for that application. WD Purple surveillance-class storage has been tested to be compatible in a wide-range of security systems. These drives are designed to replace standard desktop drives that were not designed for the harsh 24/7 always-on, high-definition surveillance environment. Desktop drives are built to run for only short intervals and are not engineered to withstand high-temperature fluctuations and equipment vibrations found in a typical surveillance application." 
 "WD Black 6TB Performance Desktop Hard Disk Drive - 7200 RPM SATA 6 Gb/s 128MB Cache 3.5 Inch WD6001FZWX"@en-US "Data Storage Page 21 | Laptops Outlet Direct"@en-US
"WD Black performance storage is designed to enhance your PC experience across heavier computing tasks whether you are a digital artist, video editor, photographer, or gamer. Available with an impressive 128 MB of DRAM cache on higher capacity models, the WD Black drive is optimized for drive performance so you can spend more time experiencing the things you love most. Enhance your PC's performance even further when you combine a WD Black drive with an SSD for a dual drive configuration, allowing you to benefit from the additional caching of your operating system onto the SSD for increased performance. All together, the WD Black drive gives you the hard drive performance, capacity and an industry leading 5-year limited warranty for an inspiring three-in-one storage solution."@en-US 