H.265 Compression, 3520D v400 sensor, support 4CH 720P AHD/TVI/CVI input/ 4CH non-real time 1080P AHD/TVI/CVI input, and support multi-channel mixed input, as following picture.
Kraft paper, used as packaging material. Very strong. It is usually yellowish brown. Semi or full bleached kraft pulp is light brown, cream or white. Quantitative 80-220 G/m2.