Pasamer 4 Channel USB to TTL Converter, Multiple Antistatic Protection Circuits USB to TTL Serial Adapter for Office Industry

Aluminum Alloy Shell: Oxidized and frosted treatment, CNC numerical control opening, firm and durable, exquisite workmanship. Stable and Safe: On board IO protection circuit, anti surge, anti static, stable and safe communication. Interface: High quality USB B and DC simple bull socket interface, smoothly plugging, firm and reliable, prevent reverse connection. Multiple Protection Circuits: On board resettable fuses and protection diodes can ensure stable output of current and voltage, prevent overcurrent and overvoltage, and improve shock resistance. Support: Support USB expansion 4 way TTL UART with hardware control, can communicate at the same time, independent of each other. The onboard TTL serial port 3.3V and 5V level conversion circuit can switch the TTL communication level.