StarTech.com 3ft (1m) DB9 to 3.5mm Serial Cable for Serial Device Configuration, RS232 DB9 Male to 3.5mm for Calibrating via Audio Jack

StarTech.com 3ft (1m) DB9 to 3.5mm Serial Cable for Serial Device Configuration, RS232 DB9 Male to 3.5mm for Calibrating via Audio Jack

  • $ 12.99

We currently have 147 in stock.
SKU: MPN: 9M351M-RS232-CABLE UPC:
Product Description
This serial cable features male DB-9 and 3.5mm connectors. It enables remote serial RS232 calibration of TVs, projectors, and digital signage devices that feature a 3.5mm audio jack.

High Quality Construction

The aluminum-mylar cable shielding and metal shell connectors mitigate EMI. The molded PVC connectors with strain reliefs and PVC cable jacket prevent damage caused by strain and/or abrasion.

Secure the DB-9 connector by tightening the integrated thumbscrews. These connector screw locks prevent accidental disconnection which could lead to data loss/corruption

DB9 Serial to 3.5mm Pinout

DB9 Pin 3 to 3.5mm Tip

DB9 Pin 2 to 3.5mm Ring

DB9 Pin 5 to 3.5mm Sleeve

This product is backed for life, including free lifetime 24/5 multi-lingual technical assistance.

More from the Manufacturer


  • THE IT PRO'S CHOICE: Designed and built for IT Professionals, this product is backed for life, including free lifetime 24/5 multi-lingual technical assistance
  • SPECIFICATIONS: Length: 3.3ft (1m) - DB9 Male to 3.5 mm Male Serial Cable - Color: Black - 28 AWG - OD:3.5mm - Jacket: PVC - DB9 Pin 3 to 3.5mm Tip - DB9 Pin 2 to 3.5mm Ring - DB9 Pin 5 to 3.5mm Sleeve
  • COMPATIBILITY: The DB9 to 3.5mm cable works with USB-A and USB-C to DB9 serial adapters (1P3FP-USB-SERIAL / ICUSB232C) for computers that do not have a built-in serial port Note: DB9 gender changer may be required such as our GC9SF (not included)
  • QUALITY CONSTRUCTION: High quality 28 AWG copper wires with Al-Mylar cable shielding and shielded metal shell connectors prevent EMI interference - Molded PVC connectors with strain reliefs and PVC jacket prevent damage due to bends or rough usage
  • DB9 TO 3.5 MM SERIAL CABLE: 3ft (1m) RS232 serial control cable enables configuration or calibration of a 3.5mm RS-232 serial devices - Use with TVs, projectors, digital signage displays requiring 3-conductor RS-232 serial control through 3.5mm audio jack

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This serial cable features male DB-9 and 3.5mm connectors. It enables remote serial RS232 calibration of TVs, projectors, and digital signage devices that feature a 3.5mm audio jack.

High Quality Construction

The aluminum-mylar cable shielding and metal shell connectors mitigate EMI. The molded PVC connectors with strain reliefs and PVC cable jacket prevent damage caused by strain and/or abrasion.

Secure the DB-9 connector by tightening the integrated thumbscrews. These connector screw locks prevent accidental disconnection which could lead to data loss/corruption

DB9 Serial to 3.5mm Pinout

DB9 Pin 3 to 3.5mm Tip

DB9 Pin 2 to 3.5mm Ring

DB9 Pin 5 to 3.5mm Sleeve

This product is backed for life, including free lifetime 24/5 multi-lingual technical assistance.

More from the Manufacturer


  • THE IT PRO'S CHOICE: Designed and built for IT Professionals, this product is backed for life, including free lifetime 24/5 multi-lingual technical assistance
  • SPECIFICATIONS: Length: 3.3ft (1m) - DB9 Male to 3.5 mm Male Serial Cable - Color: Black - 28 AWG - OD:3.5mm - Jacket: PVC - DB9 Pin 3 to 3.5mm Tip - DB9 Pin 2 to 3.5mm Ring - DB9 Pin 5 to 3.5mm Sleeve
  • COMPATIBILITY: The DB9 to 3.5mm cable works with USB-A and USB-C to DB9 serial adapters (1P3FP-USB-SERIAL / ICUSB232C) for computers that do not have a built-in serial port Note: DB9 gender changer may be required such as our GC9SF (not included)
  • QUALITY CONSTRUCTION: High quality 28 AWG copper wires with Al-Mylar cable shielding and shielded metal shell connectors prevent EMI interference - Molded PVC connectors with strain reliefs and PVC jacket prevent damage due to bends or rough usage
  • DB9 TO 3.5 MM SERIAL CABLE: 3ft (1m) RS232 serial control cable enables configuration or calibration of a 3.5mm RS-232 serial devices - Use with TVs, projectors, digital signage displays requiring 3-conductor RS-232 serial control through 3.5mm audio jack