Wd 3TB Purple 5400 rpm SATA III 3.5" Internal Surveillance Hard Drive (OEM)

In use 2 weeks and all seems fine running cool in and NVR enclosure

I gave the drive 4 stars overall and 3 on install because it does not handle Windows hard drive power saving correctly. The drive would be working fine and then suddenly a message that the drive hand dismounted unexpectedly. I finally figures out that if the drive was busy, it worked fine.

Installed and formatted fine. Using for synology survellience station..

Using two of these for my NVR system so I can record 9 cameras at 1080p for 24 hours a day. These things write and rewrite all the time with very little down time( downtime is only during routine maintenance). I have had zero inconsistency with these drives as compared to a few others I have used.

Worked well with my Zmodo NVR model ZP-NJ18-S. Has standard interfaces and the mounting holes were perfect. Easy to install. And formatted quickly. I understand this type of drive deliberately has a lower RPM to allow it to generate less heat. I'm thoroughly satisfied.

This is a great price for 4TB drive. I am using it in a 8 camera surveillance system (Alibi). Installed no problem - Holes lined up perfect. Runs very quiet - In fact I can even hear it writing and I sleep right next to it. Does not run hot (But my DVR has a fan) - Not sure about if no fan.

I purchased two of these for my Reolink RLN8-410 NVR (not the newer 410-E unit) and they work great. One is inside the NVR and the other is in an external drive bay. They were easy to install and formatted correctly right away. So far, totally reliable and don't over heat.

This is much better than the one that I had before. And told me in advance that if the camera fails, how to reset to factory default

Quiet and easy to fit and was designed for Security system

This product fixed the recording & playback issue I was having with my CCTV system. Used it to convert from micro SD card to HDD Rated Easy to install 4 stars as it did not come with screws