Western Digital WD30EURS Internal Hard Drive Data Storage

24x7 reliability.
These drives are designed to last in always-on, streaming digital audio/video environments such as PVRs, DVRs and surveillance video recorders.

Reduced power consumption.
With the combination of WD's IntelliSeek, IntelliPark, and IntelliPower technologies, WD has reduced power consumption by up to 40 percent compared to competitors' drives.

Whisper quiet.
Noise levels have been minimized to less than one sone – virtually below the threshold of human hearing.

Compatible.
Tested for compatibility in a broad range of AV products including set top boxes, DVD recorders, and mainstream surveillance systems.

Long-Term Reliability.
These drives are designed to last in high temperature always-on streaming digital audio/video environments such as PVR/DVR, DVR recorders and surveillance video recorders.