SSD stands for Solid State Drive. HDD offers a slower speed for reading and writing data. SSD is faster at reading and writing data. An HDD weighs more. SDD drives are lighter than HDD drives as they don't have the rotating disks spindle, and mirror. The performance of HDD drives worsens because of the fragmentation. 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. Green. Toshiba have again chosen to buck the trend with their Green drives. They've chosen to allocate this color to their range of surveillance hard drives, meant for use in CCTV recorders. Toshiba make similar claims around their Green drives as WD do with their Purple and Seagate do with their Blue Skyhawks. The largest difference between a surveillance grade hard drive and a desktop hard drive is their workload. A normal PC workload requires storage that is engineered for reading capabilities and small block, random data transfers. Whereas an NVR workload requires storage that is engineered for writing large sequential data blocks. Western Digital Surveillance drives are meant for recording video on 24/7 security systems. They typically use something called a network video recorder (NVR). Unlike a PC, these drives have to be writing data---specifically, video data---all the time. Mathematically, 1 GBps = 1000 MBps. As mentioned earlier, 7200 RPM is approximately 15% to 33% faster than 5400 RPM hard drives. Well, the average read/write speed of the former is 100 MB/s, while the latter is slightly higher ( 120 MB/s ). Therefore, if you're getting an HDD for better performance and speed, we recommend getting 7200 RPM SSDs store data electronically on 'cells', which makes data access quicker than a spinning HDD. Generally, SSDs can be more durable than HDDs when it comes to portability and accidental drops. Some ruggedized SSDs like the My Passport SSD can withstand drops from up to 1.98 meters (onto a carpeted surface), whereas the same drop could Toshiba CCTV Hard Disk. Toshiba surveillance, HDD's are built for capacity, speed, and retention of Video content for a long time.The Toshiba Surveillance Hard Drive is designed and tested for 24/7 reliable surveillance, built for speed, capacity, and longer content retention. Capture and analyse every frame from up to 64 video cameras in Nvidia RTX 4070-Ti $780. Samsung 860 Evo 250GB $49. HDD. RAM. USB. Seagate Barracuda 1TB (2016) $41. Corsair Vengeance LPX DDR4 3200 C16 2x8GB $42. SanDisk Extreme 64GB $72. WD Blue 1TB (2012) $32. Las unidades de vigilancia están diseñadas para grabar video en sistemas de seguridad 24/7. Por lo general, usan algo llamado grabadora de video en red (NVR). A diferencia de una PC, estas unidades tienen que escribir datos, específicamente datos de video, todo el tiempo. AQh4FT.