Product name: Rock pi 4 plus model A development boardVersion: A version (No WIFI Bluetooth)OP1 64bit hexa core processor:Dual -A72 (up to 2.0Ghz) plus -A53 (up to 1.5Ghz) Superscalar processor coresGPU: T860MP4 GPU, supports OpenGL ES 1.1 /2.0 /3.0 /3.1 /3.2, 1.0, Open 1.1 1.2, DX11.Memory LPDDR4:64bit dual channel LPDDR4@3200Mb/s, 2GB. SPI Flash:4MB SPI flash soldered - NVMe booting from SPI supported. Onboard eMMC module:Industrial level high performance eMMC storage, 16G. -SD card:uSD slot supports up to 128G uSD card. M.2 SSD:M.2 connector supports up to 2T M.2 NVME SSDnote: M.2 extension board plus heat-sink is recommended for proper mounting on Rock Pi 4 "+"Display -Compatible:-Compatible 2.0 up to 4k@60Peripherie:MIPI 2 lanes via FPC connector-Compatible and MIPI can work at the same time, support mirror mode or extend mode.Audio 3.5mm with mic with improved mechanicsHD codec that supports up to 24-bit/96kHz audio.Camera MIPI :MIPI 2 lanes via FPC connector, support up to 8MP cameraUSB 3.0 OTG x1:hardware switch for /device switch, oneUSB 3.0 x1:dedicated USB3.0 channel, lower oneUSB 2.0 x2Ethernet GbE:NetworkLAN:GbE LAN with PoE support additional HAT is required for powering via PoEIO 40-pin expansion header :1 x UART2 x SPI bus2 x I2C bus1 x PCM/I2S1 x SPDIF1 x PWM1 x 6 x GPIO2 x 5V DC power in2 x 3.3V power pinOthers: battery connector backupPower USB PDSupport USB Type C PD 2.0, 9V/2A, 12V/2APower Supply Qualcomm Quick ChargeSupport QC3.0/2.0 adapter, 9V/2A, 12V/1.5ASize 85mm X 54mmColour:greenMaterial:PCB+MetalPacka Contents:1 x Rock pi 4 plus model A development boardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.