Hikvision DS-2CD7546G0-IZ(H)S 4 MP IR Vari-Focal Darkfighter Dome Network Camera, 2.8 to 12 mm motor-driven lens, 140 dB WDR, Alarm I/O, Audio I/O, IP67, IK10, Built-in microSD/SDHC/SDXC card slot, up to 256 GB