VIVOTEK Indoor 2MP H.265 WDR Pro Speed Dome Network Camera (SD9161-H) - CPU: Multimedia SoC (System-on-Chip), Operating System: Microsoft Windows 8/7 Mac 10.12 (Chrome only), RAM: 256MB, Flash: 128MB, Storage Slot type: Slot type: MicroSD/SDHC/SDXC card slot Seamless Recording, Resolution: 1920x1080 (2MP), Image Sensor: 1/3" Progressive CMOS, Video Compression: H.265, H.264, MJPEG, Maximum Streams: 4 Simultaneous Streams, Audio Capability: Two-way Audio (full duplex), Audio Interface: External microphone input; External line output, Network Users: Live viewing for up to 10 clients, Interface: 10 Base-T/100 Base-TX Ethernet (RJ-45), Connectivity: 1 x RJ-45 cable connector for 10/100Mpbs Network/PoE connection, 1 x Audio input, 1 x Audio output, 1 x DC/AC 24V power input, 4 x Digital input, 2 x Digital output