The SRN-1670D are high-quality, powerful performance network video recorders that support up to 16 network streams with a throughput of up to 64Mbps. These NVRs feature real-time recording capability at 4CIF (704 x 480) / 1.3M (1280 x 1024) / 2M (1920 x 1080) / 3M (2048 x 1536). They also offer compression in different formats such as H.264, MPEG-4 and MJPEG in dual codec, which allows selecting the proper codec to meet the users' needs. For storage, the NVRs support up to 5/1 SATA HDDs with possible expansion and a USB and DVD writer for easy backup.