Hi, this is the Official Seagate Forums Team. When you see differences in drive types like surveillance, NAS, and desktop, this means they were engineered with different uses in mind, and usually have different firmware on the drives for those uses as well. A surveillance drive like [urlExt=http://www.seagate.com/internal-hard-drives/hdd/skyhawk/]Seagate SkyHawk series[/urlExt] is optimized for write operations majority of the time, for example, writing to a surveillance DVR system 90% of the time and playback (reading) the other 10%. Different drive types also have different workload ratings. Another type of drive you may want to look into is [urlExt=http://www.seagate.com/internal-hard-drives/hdd/ironwolf/]Seagate IronWolf series[/urlExt]. IronWolf has a lot of the same benefits including 24/7 use rating that many people like about the SkyHawk, but is more balanced in terms of read/write usage and has firmware designed with multiple users, cloud storage, vibration, and NAS enclosure applications in mind. Here is some common comparisons across the three main types:
http://imgur.com/F9goKaN
Regardless of which drive you decide is right for your needs in the end, we want to say thank you for considering Seagate!
Seagate Technology | Official Forums Team
IronWolf Drives for NAS Applications
SkyHawk Drives for Surveillance Applications
BarraCuda Drives for PC and Gaming