... video signal recording, storage, playback and transport Support Coaxial Control (PTZ Control)HDMI:1920*1080HDD: 1*4TB MODEL SA-Y04System Video ... iPhone&AndroidSATA SATA×1 ≤2TBPTZ control 1 RS485, support multiple PTZ protocolsUSB USB2.0×2Authority management Support add, modify, delete users ...