Cables and converters for connecting serial devices to a computer or laptop's USB port.
- USB → RS232 (DB9 COM port) cables: CH340, PL2303, FTDI chipsets
- USB → RS485 / RS422 converters (industrial, with lightning protection)
- USB → RJ45 console cables for Cisco, Huawei, TP-Link, MikroTik
- Multi-interface USB → RS232/RS485/RS422/TTL converters
Applications: POS terminals, cash registers, CNC machines, medical equipment, network administration, industrial automation.