1. The core board for Tang Primer20K uses GOWIN Semiconductor GW2A-LV18PG25687 as the main chip, which has internal resources, such as high-performance DSP, high-speed LVDS interface and BSRAM memory resources. On-board peripheral components such as DDR and power , users can use this core board to quickly develop and verify projects. The above features make the 20K core board suitable for high-speed and low-cost applications 2. The for Tang Primer20 K Lite kit includes a core board and a Lite backplane. The Lite backplane leads out most of the IO ports through pin headers and PMOD interfaces. Users can connect other peripheral modules or circuits for secondary development. 3. The for Tang Primer20 K Dock kit includes the core board and the Dock bottom plate. The Dock backplane has a wealth of peripheral resources onboard, such as USB-TAGUART circuit, Ethernet PHY and network port connectors, USB2.0PHY, -compatible TX connector, Audio output circuit and headphone connector, RGB screen connector, Camera camera connector. Memory: 1G bits DDR3 Logical Units (LUT4): 20736 Register (FF): 15552 Distributed static random access memory S-SRAM (bits): 41472 Block static random access memory B-SRAM (bits): 828K The number of block static random access memory BSRAM (pcs): 46 High-performance DSP module: support 9x9, 18x18, 36x36bit multiplication and 54bit accumulator Multiplier (18x18 Multiplier): 48 SPI FLASH: 32M-bit Flexible PLL resources: 4 Phase Locked (PLLs) Display screen interface: SPI screen interface IO: Support 4mA, 8mA, 16mA, 24mA and other drive capabilities; Bus , pull-up/pull-down resistors and Open Drain output for each I/O Connector: TF card socket, 8P 1.0mm female socket (lead out TAG interface) DRAM: Onboard128 MB DDR3 chip Colour:black Material:PCB Package Contents: 1 x 20K core board 1 x 8P 1.0mm to 2.54mm terminal wire 1 x RV debugger plus module 1 x USB 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.