Review on 💾 3TB Surveillance Hard Drive - WD Purple, Intellipower 3.5", SATA 6 Gb/s, 64MB Cache, 5400 RPM - FFP Option by Velizar Chayshev ᠌

I won’t say anything about the read / write speed, because I use it in a DVR. 5-8 cameras from 2 to 5 megapixels pulls smoothly, 3 TB is enough for about a month of archive with continuous recording. Pros: Quiet. It is in the NVR recorder and is almost inaudible (despite the fact that this drive is the only device with a motor in the room, everything else is fanless). With its cons: Came in a bag without packaging, at least they put it in a box, or something.