SKY-SU504p-0 Bridge 504+ (L) - Location Setup Fee Bridge 504+ Compact and Ruggedized Form Factor) 1MP: 72CH, 4MP: 50CH, Analytics: 20CH, up to 4 LPR cameras, up to 2 days of local video buffering 50CH @ 4MP, HDMI, DP This product is subject to the WisenetLocation Setup Fee Bridge 504+ Compact and Ruggedized Form Factor) 1MP: 72CH, 4MP: 50CH, Analytics: 20CH, up to 4 LPR cameras, up to 2 days of local video buffering 50CH @ 4MP, HDMI, DP This product is subject to the Wisenet SKY agreement. Designed for professional security installations with high reliability and performance.