WJ-ND400 network disk recorder is capable of recording up to 64 network cameras simultaneously. This high performance recorder supports H.264, MPEG-4 & JPEG images from i-Pro series cameras & encoders & can record up to 64 megapixel images at 30 ips/camera simultaneously (H. 264 low mode). It supports up to 54 TB disk capacities with 9 HDD slots in the main unit & five WJ-HDE400 hard disks extension units each with 9 HDD slots. With the high quality-high frame rate recording, extensive disk capacity & advanced features, WJ-ND400 is an ideal choice for advanced network surveillance systems.