Extending USB to 4CH TTL (UART) with hardware flow control, allows concurrent and independent communication for each channel
Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
Onboard IO protection circuit for surge suppress and ESD protection, safe and stable communication
Aluminium alloy enclosure with oxidation dull-polish surface, CNC process opening, solid and durable, well-crafted
Onboard TTL serial port 3.3V and 5V voltage level switch, allows selecting TTL level. Quality USB-B connector, and IDC connector with fool-proof design.