Free Express Shipping! AVer TR323NV2 Auto-Tracking Livestreaming UHD 4K NDI HX PTZ Camera with 21x Optical Zoom 1/2.8" CMOS Sensor, UHD 4K Resolution, 21x Optical Zoom, 12x Digital Zoom, 3G-SDI, HDMI, IP, USB-B Output, AI Auto-Tracking Technology,...