1. new CH340G chip, this series of chips are officially recommended by STC USB to TTL chip, there will be no incompatibility due to different drivers/different computers, etc.! ! ! 2. High-quality yellow high-grade pin headers are more and beautiful than black pin headers on the market; 3. Not only the power light PWR, but also TXD and RXD indicator lights, it is convenient to intuitively know whether the product is working without an instrument; 4, 3V3 and 5V are by short circuit; 5. Support 98/ME/2000/XP/Server 2003/VISTA/Server 2008/Win7/Win8 32-bit/64-bit Name: flashing board module Type: MCU Colour:Black Material: PCB Package Contents: 3 x Brush board Only the above package content, other products are not included. Note: Light 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.