Details: https://wiki.radxa.com/Rock4/4cplus Rockchip RK3399T Processor 64bit hexa core processor Dual Cortex-A72, frequency 1.5GHz (oc to 2GHz) with quad Cortex-A53, 1.4Ghz (os to 1.6GHz) with separate NPU NEON coprocessor Mali T860MP4 gpu, supports OpenGL ES 1.1 /2.0 /3.0 /3.1 /3.2, Vulkan 1.0, Open CL 1.1 1.2, DX11 Optional industrial compatible high performance eMMC module, 8G/16G/32G/64G/128G available Micro HDMI 2.0 up to 4k@60 (Type D), H.265/VP9 (HEVC) hardware decode Micro HDMI 2.0 up to 2k@60 (Type D), H.264 hardware decode Peripherie MIPI DSI 4 lanes display via FPC connector Two of HDMI/HDMI2/MIPI DSI can work at the same time, support mirror or extend mode. MIPI CSI 2 lanes via FPC connector, support up to 8MP camera Audio 3.5mm jack with mic with improved mechanics HD codec that supports up to 24-bit/96kHz audio Output can drive 32Ohm head phones directly hardware switch for host/device switch, upper one additional HAT is required for powering from PoE Dual-pin PWM fan strip (controller chip onboard) NOTE: Mechanically fits many of the existing Raspberry Pi 4 accessories.