We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
StarTech DB9 male to 3.5mm serial adapter cable

STARTECH

STARTECH 9M351MRS232CABLE DB9 Male to 3.5mm gender changer

SKU CH-89FA-RBKDX MPN 9M351MRS232CABLE

A DB9 male to 3.5 mm serial cable for configuring serial devices via an audio jack

  • Connect serial equipment via 3.5 mm audio jack
  • Male DB9 plug fits standard RS-232 ports
  • 1 metre cable length for flexible placement
  • StarTech manufacturing ensures reliable signal integrity
  • UPC 065030893565 simplifies inventory tracking

StarTech DB9 to 3.5mm Serial Cable

This StarTech cable connects a male DB9 RS-232 port to a 3.5 mm audio-style jack. It is built for technicians who configure serial devices through a 3.5 mm console interface. The 3 ft length suits bench or rack-side work.

Suits admins with 3.5 mm serial consoles

Network engineers and system integrators who manage routers, switches or firewalls equipped with a 3.5 mm serial console will use this cable. It does not serve setups that require a female DB9 connector or a different console jack type.

Male DB9 to 3.5 mm RS-232 wiring

The cable terminates in a male DB9 connector on one end and a 3.5 mm plug on the other, wired for RS-232 signalling. This pin-out decides whether the cable matches the target device’s console port.

Highlights

  • Connect serial equipment via 3.5 mm audio jack
  • Male DB9 plug fits standard RS-232 ports
  • 1 metre cable length for flexible placement
  • StarTech manufacturing ensures reliable signal integrity
  • UPC 065030893565 simplifies inventory tracking

Specifications

BrandStarTech
Shipping weight0.45 kg
Package size170 × 127 × 10 mm

Questions about this item

Should I pick the 3.5 mm end or a different connector for my serial device?

This cable has a fixed 3.5 mm plug on one side and a DB9 male on the other; choose it only if your equipment uses that exact 3.5 mm serial port.

What does the RS232 label mean when I plug this into a router console port?

It carries standard RS232 signalling levels through the 3.5 mm jack so you can configure the device from a DB9 serial port.

Does the DB9 male connector follow the RS232 pinout used by most network gear?

Yes, the DB9 male end is wired to the common RS232 pinout expected by typical console ports.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.