S-SRAM: 17280 bits S-SRAM User Flash: 608K bits User Flash Display interface: -Compatible, 40P RGB interface, 8P SPI screen interface With IF card holder Downloader: Onboard USB-JTAG&UART downloader Core configuration: Logical Units (LUT4): 8640 Register (FF): 6480 Distributed Static Random Access Memory SSRAM (bits): 17280 Block Static Random Access Memory B-SRAM (bits): 468K The number of block static random access memory BSRAM (pcs): 26 User Flash (bits): 608K PSRAM (bits): 64M High-performance DSP module: support 9x9, 18x18, 36x36bit multiplication and 54bit accumulator Multiplier (18x 18 Multiplier ): 20 SPI FLASH: 32M-bit Flexible PLL resources: 2 Phase Locked (PLLs) Debugger: Onboard BL702 chip, providing USB-JTAG download and USB-UART serial port printing functions for GW1NR-9 Connector: TF card holder, 2x24P 2.54mm pin header pad Keys: 2 user programmable keys : 6 programmable onboard Material: PCB colour: black Package Contents: 1 x Motherboard 2 x 2.54mm pin header 1 x Type-C data cable Only 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.