ITEM NAME:512KB Flash 128KB RAM STM32F411CEU6 Electronic Development Learning Module Product Description Description: 512KB Flash 128KB RAM Development Module STM32F411CEU6 Learning Board for Arduino DIY Electronic Parts Description: This is a STM32F411CEU6 core development board, inner core is ARMCortex-M4. Rich in resources, backed by powerful resources provided by for STMicroelectronics, Perfect choice for learning or secondary development. Specification: IC Model: STM32F411CEU6 IC Storage: 512Kbytes flash, 128Kbytes RAM External Crystal Oscillator: 25MHz High-Speed Crystal Oscillator +32.768KHz Low-Speed Crystal Oscillator Back Flash Bonding Pad:Â Users can solder and install flash by themselves as needed (W25Q32JVSSIQ is Recommended) Ready-Made Communication Interfaces: USB Type-C, SWD, USART (A9:TXA10:RX). Board Size: 53 X 21 X 5mm/2.09 X 0.83 X 0.2" Weight: 7g Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X Development Learning Module.IC Model: STM32F411CEU6. IC Storage: 512Kbytes flash, 128Kbytes RAM. External Crystal Oscillator: 25MHz High-Speed Crystal Oscillator +32.768KHz Low-Speed Crystal Oscillator. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.