Features: Converts RS232 to a serial interface via USB, making it efficient and convenient to connect to a printer. Supports serial RS232 interfaces, remote power control, and automatic serial communication handshake protocol. Stable signal transmission is ensured by professional chips, providing more stable performance and strong compatibility. Made with eco-friendly PVC materials, featuring insulation and flame retardancy. The nickel-plated joint is more durable and reliable for use. The interfaces are thickened with a nickel-plating layer, offering corrosion resistance, acid and alkali resistance, high and low-temperature resistance, and a longer lifespan. Note: Please identify the interfaces and connector before purchasing. This product is an RS232 9-pin connector. Please identify your printer's RS232 9-pin interface to avoid purchase errors. Specifications: Item: USB to DB9 RS232 Connection Cable Material: PVC Cable Length: Approx. 120cm / 47.24in, 200cm / 78.74in, 300cm / 118.11in Note: Due to lighting effects and shooting angles, there may be certain tolerances in the product. Please understand. Please allow 0-1 cm error due to manual measurement. Package Includes: 1 PC USB to DB9 RS232 Connection Cable