Description: Support 24 EEPROM and 25 SPI flash 8 pin/16 pin chip USB to TTL port, can getroot online With CH341A chip Recognize 25 series chip automatically And support download STC series procedure of single chip With 24/25 status indicator lamp SPI pin to support expanding the utility Specification: Material: PCB Board Color: As picture show Size(LxWxH): Approx. 85x30x15mm/3.35x1.18x0.59inch Package Includes: 1 piece USB Programmer Note: ESMT SST Series 25 can be read only, can not be written due to CH341A characteristic Pls allow an error of 1-3mm due to the difference of manual measurement