- Black: A high-performance hard drive that's perfect for gamers or power users who need the extra speed. - Red: A NAS (Network Attached Storage) hard drive designed for use in home and small office networks. Supports up to 8 Bay systems. - Purple: A surveillance-grade hard drive designed for video recording and playback in security The difference between the decimal and binary prefix interpretation caused some consumer confusion and led to class action suits against HDD manufacturers. The plaintiffs argued that the use of decimal prefixes effectively misled consumers, while the defendants denied any wrongdoing or liability, asserting that their marketing and advertising 12. What are the main differences between desktop-series hard disks and server-series? The obvious things I can see are: durability (server hardware mostly more qualitative and have more warranty) and power consumption (server hardware more focused on performance, than on power economy). Also server disks are usually a little faster, but it IronWolf hard drives are built with IronWolf Health Management (IHM) on enabled NAS, providing intervention, prevention, and recovery, and also include Rescue Data Recovery Services for extra peace of mind. Unlock valuable surveillance insights from edge to cloud See The Difference. This internal hard drive provides scalability for your network-attached storage. Whether your needs include hosting a cloud, sharing files, or managing a high-traffic network, the N300 NAS Internal Hard Drive offers advanced reliability and is designed for 24/7 operation, supporting workloads of up to 180 TB per year and MTTF of up to 1.2 Most of the time, manufacturers put the word "NAS" somewhere on the packaging and on the hard drive itself, but usually the model name will get higher preferential treatment, and it'll be something unique to the manufacturer. Here are the model names from a few of the top hard drive manufacturers: Western Digital: WD Red. What are the Differences between PC Hard Drive and Surveillance Hard Drive. Many will wrongly assume that regular desktop hard drive is not much different from the surveillance hard drive. The truth is a dedicated surveillance hard disk drive (HDD) is more reliable, durable, and advanced than desktop hard drive in many ways. 1024 Bytes = 1 Kilobyte. 1024 kilobyte= 1 Megabyte. 1024 Megabytes = 1 Gigabyte. 1024 Gigabytes = 1 Terabyte. and so on…. This data is stored primarily on Hard Drives on the various computer systems throughout the world. There are many different types of storage devices today that all perform similar tasks, albeit using different technologies WD Red Plus NAS hard drive In the following we want to look at the model WD80EFZZ. WD Red Plus NAS hard drive with 8 TB of the WD Red Plus hard drive series. This is a CMR hard disk. The WD Red was specially developed for NAS systems that have one to eight drive bays in 3.5-inch and 2.5-inch sizes. The speed is 5640 rpm; is written with CMR. 6 Replies. NAS or Surveillance hard drives this days are normal SATA drives, if they are 5,400 RPM drives I do not recommend using on a desktop. If it is 7,200 rpm drive then I would recommend for usage. The main difference between surveillance drives and normal drives is that they are slightly more ruggedized for weather/environmental conditions. Vv5GnA.