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Monoprice 100438 6ft DB9 Serial Cable M/M — main product image
Monoprice

Monoprice 100438 6ft DB9 Serial Cable M/M

★★★★★5.0 (6 reviews)

Reliable Serial Connections for Your DevicesIntroducing the Monoprice 6ft DB9 M/M Molded Cable, a durable and reliable cable designed for connecting devices with DE-9 (DB-9) serial ports. With its molded construction and straight-through wiring, this cable provides a secure and efficient connecti...

$7.25*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Reliable Serial Connections for Your Devices

Introducing the Monoprice 6ft DB9 M/M Molded Cable, a durable and reliable cable designed for connecting devices with DE-9 (DB-9) serial ports. With its molded construction and straight-through wiring, this cable provides a secure and efficient connection for your communication needs.

Overview:

  • Connector Type: DE-9 (DB-9) male plug on each end
  • Wiring: Straight through
  • Wire Gauge: 28 AWG

Specifications:

  • Brand: Monoprice
  • Model: 100438
  • Length: 6ft

Key Features

Although they were originally designed to use the DB-25 connector RS-232 ports and cables commonly use the DE-9 (aka DB-9) connector

This cable features a DE-9 (DB-9) male plug on each end

The cable is wired straight through with 28 AWG wires

Each pin is connected to the corresponding pin number on the other end

The connector heads are molded onto the cable and are equipped with a pair of thumbscrews for securing the plug to the female socket

Specifications

Cable Type
DB9 Serial Cable
Connectors
DE-9 (DB-9) Male to Male
Wiring
Straight through, pin to corresponding pin
Wire Gauge
28 AWG
Length
6ft
Connector Features
Molded heads, Thumbscrews for secure attachment

Pros & Cons

👍 Pros

  • Features DE-9 (DB-9) male plugs on each end, ensuring direct connection between compatible serial devices.
  • The cable is wired straight through, with each pin connected to its corresponding pin on the other end for standard serial communication.
  • Constructed with 28 AWG wires, providing a robust and reliable connection for data transfer.
  • Connector heads are molded onto the cable, enhancing durability and strain relief at the connection points.
  • Equipped with a pair of thumbscrews on each connector, allowing for secure attachment to female sockets and preventing accidental disconnection.
  • The 6-foot length offers ample reach for connecting serial devices within a reasonable proximity.

👎 Cons

  • Specifically designed for DE-9 (DB-9) serial connections, limiting its use with other connector types.
  • While 28 AWG is specified, exact shielding details or jacket materials are not provided, which could impact signal integrity in noisy environments.
  • The "straight through" wiring means it's not a null modem cable, which is required for certain direct computer-to-computer serial connections.
  • The 6-foot length, while suitable for many applications, might be too short for extended serial peripheral setups.
  • The product description does not detail specific data transfer rates or protocols supported beyond being an RS-232 type cable.

Frequently Asked Questions

This cable features a DE-9 (DB-9) male plug on each end, suitable for standard serial connections.
The cable is wired straight through, meaning each pin is connected to the corresponding pin number on the opposite end.
This Monoprice serial cable is 6 feet long.
Yes, the connector heads are molded onto the cable and are equipped with a pair of thumbscrews for securing the plug to female sockets.
The cable is constructed with 28 AWG wires.
This is a straight-through serial cable; for direct computer-to-computer connections, a null modem cable is typically required, which this product is not.

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