Part Number:1 Welcome to my store, Hope you have a pleasant shopping trip! Features: 1>.Integrated IC lock seat 2>.Replaceable crystal socket 3>.Integrated MAX232 serial port 4>.Integrated ICSP programming interface 5>.Integrated DC power supply interface 6>.I/O ports all outSpecifications: 1>.Work voltage: 5V 2>.Work Temperature: -25~85 3>.Work Humidity: 5%~95%RH 4>.Size: 75*64mmPackage List: 1>.1pcs PIC16F877A Core System Board 2>.4pcs copper cylinder 3>.4pcs screw 4>.1pcs USB power supply cableNotes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow 1-2cm slight dimension difference due to different manual measurement. It is a PIC16F877A Core System Board PIC USB Programmable MCU Controller Experimental Platform. Integrated IC lock seat. Replaceable crystal socket. I/O ports all out. Integrated MAX232 serial port. Integrated ICSP programming interface. Integrated DC power supply interface. Work voltage: 5V. Work Temperature: -25~85. Work Humidity: 5%~95%RH. Size: 75*64mm. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied. See more product details It is a PIC16F877A Core System Board PIC USB Programmable MCU Controller Experimental Platform. Integrated IC lock seat. Replaceable crystal socket. I/O ports all out. Integrated MAX232 serial port. Integrated ICSP programming interface. Integrated DC power supply interface. Work voltage: 5V. Work Temperature: -25~85. Work Humidity: 5%~95%RH. Size: 75*64mm. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied.