Features: brand new and high quality On-board high-quality imported gold-plated chip holder. Through the SWIM interface, the related chips can be test and burned directly. Choose STM8S or STM8L by 4bit dip switches, which is neat and beautiful. The crystal oscillator can be freely replaced by the user, and all V0 are led out by 2.54mm double-row needle.It is convenient for users to build circuits. Greatly improve the accuracy, save time and convenient for operation. Specifications: Material:PCB Size:Approx.4.4x5cm/1.73x1.97inches Package Includes: 1x Burning Holder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.