ROCK 4 SE is a class-leading single-board computer developed by OKdo in collaboration with Radxa. It’s a reliable, robust, low-power and high-performing SBC based on the powerful Rockchip RK3399-T processor, big.LITTLE™ Arm® Dual Cortex-A72® CPU, Arm Mali™ - T860MP4 GPU and 4GB dual channel LPDDR4 RAM. The board benefits from an extensive list of high-quality features, such as an onboard antenna, RTC, WiFi 802.11 b/g/n/ac, Bluetooth 5 and BLE modules, an audio jack with microphone in, a 4K HDMI port 60fps, user configurable USB HOST/OTG mode, M.2 memory expansion, eMMC robust memory slot and much more. Why choose the ROCK 4 SE as your next single board computer? Class-leading superior performance Powerful Rockchip RK3399-T processor Onboard RTC (real-time clock) Extensive storage capacity - a Micro SD card, an eMMC and an M.2 (M key) Multiple connectivity capabilities including; Bluetooth 5.0, WiFi, Gigabit Ethernet Onboard 40P GPIO extension header Advanced multimedia capability due to the Arm Mali T860MP4 quad-core GPU HDMI port supporting displays up to 4Kp60 resolution A high-quality audio output via a 3.5mm onboard audio jack (headphone and headset) and microphone in ROCK 4 SE Interfaces 802.11 b/g/n/ac Wireless LAN Bluetooth 5.0 with BLE 1 x SD Card 1 x HDMI port supporting displays up to 4Kp60 resolution 2 x USB2 HOST ports 1 x USB3 HOST port, 1x USB3 OTG port 1 x Gigabit Ethernet port (supports PoE with addon PoE HAT) 1 x camera port (2lane MIPI CSI) 1 x display port (2lane MIPI DSI) 40 x user GPIO supporting a wide range of interface options:
· 1 x UART 
· 2 x SPI bus
· 2 x I2C bus
· 1 x PCM/I2S
· 1 x SPDIF
· 1 x PWM
· 1 x ADC
· 6 x GPIO
· 2 x 5V DC power pin
· 2 x 3.3V power pin Availability OKdo, in collaboration with Radxa, ensure long-term stock availability of ROCK 4 SE, supporting your design applications. Technical Specifications Processor: RK3399T, Arm® big.LITTLE™ technology (Dual Cortex®A72; frequency 1.5Ghz, quad CortexA53, frequency 1.0Ghz) GPU: Arm Mali™ T860MP4 GPU, supporting OpenGL ES 1.1/2.0/3.0/3.1/3.2, Vulkan 1.0, Open CL 1.1 1.2, DX11 RAM: Dual channel 4GB 64bit LPDDR4 Dual display via HDMI and MIPI DSI supporting mirror or extend modes H.265/VP9 (HEVC) hardware decode (up to 4Kp60) H.264 hardware decode (up to 1080p60) WiFi 5/BT 5.0, BLE, Gigabit Ethernet USB TypeC™ PD/QC power input Micro SD, eMMC/M.2 (M key) connectors Real-time clock (RTC) Software: ARMv8 Instruction Set, Debian/Ubuntu Linux support, Android 7.1/Android 9.0/Android 10/Android 11 support, GPU-enabled AI stack such as Caffe, Hardware access /control library for Linux/Android Operation Temperature: 0∼50 ℃/ Storage Temperature: -20∼80 ℃