Description: PL2303HX USB to TTL with Enclosure Flash Cable Without Internet and display, you can log in and modulate Raspberry Pi through serial port. Length: from USB head to female head, 1 M Connection Explanation: Red-VCC, Black-GND, White-TXD, Green-RXD Please be careful. Wrong connection will lead to main board damage! Size: Approx. 1m/ 3.28ft Package Includes: 1x USB Cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement