Check the listing for details. STM32 Core407V STM32F407VET6 Cortex-M4 Development Board Mainboard Module. Condition: New. Listed at 19.76 USD. STM32 Core407V STM32F407VET6 Cortex-M4 Development Board Mainboard ModuleDescription: Core407V is a small STM32 development board that features an STM32F407VET6 device as the microcontroller, supports further expansion. It is ideal for starting application development with STM32F familyImportant Product Features: Onboard: SD card slotRTC Battery: CR1220 (Not Included)Wireless Communication: NRF2401 InterfaceData storage: W25Q16Support FMSC LCD InterfaceMulti-user keysAll the CPU-10 lead2.54mm integer multiples spacing pin STM32F407VET6: the high performance STM32 MCU which features:Core: Cortex-M4 32-bit RISCFeature: a full set of single-cycle DSP instructionsOperating Frequency: 168MHz, 210 DMIPS/1.25 DMIPS/MHzOperating Voltage: 1.8V-3.6VPackage: LQFP100Storage Resources: 512kB Flash, 192+4kB SRAMResource: 3 x SPI,3 x USART, 2 x UART, 2 x I2S, 3 x I2C; 1 x FSMC,1 x SDIO,2 x CAN; 1 x USB 2.0 FS/HS Controler(with DMA); 1 x USB HS ULPI; (used for external USB HS PHY)1 x 10/100 Ethernet MAC;1 x 8 to 12-bit parallel camera interface; 3 x AD(12 bit,1us),2 x DA(12 bit)Package Included: 1 x STM32F407VET6 Board 10 x Dupont Cable 1 x Mini USB Cable Payment MathordReturns PolicyAbout FeedbackPayment Mathord 1. PayPal payment accepted only. 2. Items will be shipped to your eBay address. Please make sure it is correct. 3. Payment must be received 4 days after auction ended.Returns Policy 1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase. 2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer. 3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner. 4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication with us. Please allow max 2 business days for us to response. About Feedback When you satisfied with our product and services please leave us positive feedback. If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay. On 20-Aug-18 at 08:22:37 BST, seller added the following information:On 20-Jun-20 at 08:20:19 BST, seller added the following information: