16 color and/or b/w cameras can be connected, Hardware adpcm audio compression/decompression, Record capabilities – Aposonic A-S1602R20B User Manual

Page 7: Full-d1: up to 120 (ntsc) / 100 (pal) ips, Half-d1: up to 240 (ntsc) / 200 (pal) ips, Cif: up to 480 (ntsc) / 400 (pal) ips, Playback capabilities, Full-d1: up to 60 (ntsc) / 50 (pal) ips, Half-d1: up to 120 (ntsc) / 100 (pal) ips, Cif: up to 240 (ntsc) / 200 (pal) ips