5pcs CH340G RS232 Upgrade USB to TTL Auto Converter Adapter STC Brush Module

Features: ? There are power light PWR, and TXD and RXD indicators Reserve RTS, CTS location 3.3V and 5V dual voltage selection Support XP/WIN7/WIN8/WIN10 system Anti-short-circuit, anti-overcurrent, anti-reverse, anti-high voltage multiple protection. ? Package includes: ? 5 x Module