Serial cable StarTech 1 m DB9 RS232 Male to Female, straight-through, black

Extend serial connections between DB9 RS232 devices with this 1 m straight-through serial cable from StarTech. The cable features a DB9 male connector on one end and a DB9 female connector on the other, enabling a simple extension of existing RS232 cabling for modems, industrial controllers, POS terminals and other legacy serial equipment. The black jacket and standard DB9 form factor make it compatible with typical serial ports while complying with CE and RoHS regulatory requirements.

Advantages

This straight-through cable preserves pin-to-pin wiring for standard RS232 communications and provides a convenient, short-length extension without reconfiguring device settings. Constructed with durable materials and shielding to reduce electromagnetic interference, the cable supports reliable signal transmission in environments where legacy serial connectivity is required. Its compact 1 m length reduces excess slack while allowing flexible device placement.

Suitable for

• Extending connection between a computer or terminal and an external RS232 device
• Connecting modems, POS terminals and serial printers
• Adding reach for industrial controllers and automation equipment with DB9 ports
• Temporary or permanent replacement of an existing short serial cable

Key specifications

• Cable length: 1 m
• Connector configuration: DB9 male to DB9 female
• Cable type: Straight-through RS232 serial cable
• Color: Black
• Shielding: Braided or foil shielding to help reduce EMI (as typical for RS232 extension cables)
• Regulatory compliance: CE and RoHS

How to use

Connect the DB9 male end to the female serial port on the host device or extension point and connect the DB9 female end to the male connector of the peripheral device. Ensure both devices are powered off or that serial communication parameters match before establishing a connection. This is a straight-through cable, so no null-modem wiring is present; use a null-modem adapter if crossover wiring is required for your setup.

Usage recommendations

Install the cable away from large AC power lines and high-voltage equipment to minimize interference. Route the cable without sharp bends and avoid excessive tension on connectors. For long-term installations in industrial environments, verify connector seating and periodically inspect the jacket and connectors for wear.