This is an industrial USB to RS232/485/TTL isolated converter with original FT232RL inside. It features embedded protection circuits such as power isolation, ADI magnetical isolation, and TVS diode, etc. What's more, the USB TO RS232/485/TTL comes with an aluminium alloy enclosure, make it solid and durable to work. The USB TO RS232/485/TTL is very easy to use, fully automatic transceiving without delay. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement. Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fastly and stably, without interfering each other.3 LEDs for indicating the power and transceiver status Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch.Aluminium alloy enclosure with sand blasting and anodic oxidation, CNC process opening, solid and durable USB TO RS232, USB TO RS485, USB TO TTL (UART). Package Content: USB TO RS232/485/TTL x1; USB cable x1