• Amlogic S905Y2 64bit quad core based Mini SBC Quadcore power with up to 4GB LPDDR4 RAM with the dimensions of an USB-stick. • Available Models:H for with gpio header T for external antenna SKU RAM eMMC WiFi/BT GPIO Header Antenna Note D0H 512MB-AP6212 Yes on boardD1H 1GB -AP6212 Yes on board,D2E8H 2GB 8GB AP6256 Yes on boardD2E8T 2GB 8GB AP6256 No external D4E16H GB 16GB AP6256 Yes on board D4E16T 4GB 16GB AP6256 No external D4E32H 4GB 32GB AP6256 Yes on board D4E32T 4GB 32GB AP6256 No external D4E64H 4GB 64GB AP6256 Yes on board D4E64T 4GB 64GB AP6256 No external D4E128H 4GB 128GB AP6256 Yes on board D4E128T 4GB 128GB AP6256 No external RADXA Zero product details:Amlogic S905Y2 64bit quad core processorQuad Cortex-A53, frequency 1.8Ghz, 12nm,GPU Mali G31 MP2 GPU, supports OpenGL ES 1.1 /2.0 /3.1 /3.2, Vulkan 1.1, Open CL 1.1 1.2, 2.0 Full Profile,Memory LPDDR4 64bit dual channel LPDDR4@3200Mb/s, 1GB/ 2GB or 4GB,Wifi/BT Antenna,Wifi/BT with external antenna support**WIFI4/BLE4 and WIFI4/BLE5 available for different models! Storage eMMC 5.1,soldered high performance eMMC 5.1 with capacities of 8GB/ 16GBMicro SD card uSD slot supports up to 128G uSD card,Display Micro HDMIHDMI 2.1, 4K@60 HDR,Peripherie,HD codec H265/VP9 decode 4Kx2K@60USB 3.0 Type-C HOST x1,USB 3.0 HOST,dedicated USB3.0 channelUSB 2.0 Type-C OTG x1,USB 2.0 OTG,Network (depending on the model)Wireless 802.11 abgn wifi 2,4GHz, Bluetooth 4.2,Wireless 802.11 ac wifi 2,4/5GHz, Bluetooth 5.0,O 40-pin expansion header:1 x UART,2 x SPI bus2 x I2C bus,1 x PCM/I2S,1 x SPDIF,1 x PWM,1 x ADC,6 x GPIO,2 x 5V DC power in x 3.3V power pin,Others,Crypto Engine,one button,Size 66mm x 30mm,Essentials You Need,RADXA ZERO,Power adapter with USB type C port equal or larger than 5W,MicroSD Card or onboard eMMC moduleKeyboard & Mouse,Monitor with HDMI input