WD AV-25 2.5-inch SATA hard drives are specially engineered to offer cool quiet operation while providing maximum reliability in 24 x 7 always-on environments. With support for up to five simultaneous HD video streams, these drives are perfect for DVRs, digital video surveillance and other demanding multimedia applications.
It is a compact 4-in-1 camera with a 1 / 2.9" Sony sensor of 2.19 Mpx Full HD. 2.8mm lens with 18 IR SMD LEDs up to 20 meters and with remote OSD menu from the DVR.In resume, a compact camera with infrared, suitable for outdoors. 4-in-1 technology (HDTVI / HDCVI / AHD / CVBS) 1080p PRO range.