2-way audio and configurable I/O; PTZ control; Signed firmware and secure boot; Support for HD analog cameras up to 4K; Zipstream with support for H.264/H.265AXIS P7304 is a full-featured, 4-channel video encoder that adds the benefits of IP surveillance to any analog camera system. It supports standard and HD analog cameras up to 4K resolution, and analog PTZ cameras. Enhanced security features such as signed firmware and secure boot ensure the integrity and authenticity of the encoders firmware. Plus, Zipstream with support for H.264/H.265 video compression significantly reduces bandwidth and storage requirements. The encoder features two-way audio, I/O ports, and a memory card slot for edge storage. It also comes with intelligent analytics such as motion detection, audio detection and tampering alarm. Video Channels quantity 4 channels Video compression formats AVC, H.264, H.265, HEVC, MPEG4 NTSC resolutions 720x480 pixels PAL resolutions 720x576 pixels Maximum frame rate 30 fps Ma