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Monoprice 101128 DIN5F to MDIN6M AT Keyboard Adapter — main product image
Monoprice

Monoprice 101128 DIN5F to MDIN6M AT Keyboard Adapter

★★★★★4.5 (6 reviews)

A simple 6-inch adapter that lets you connect your legacy AT keyboard to any PS/2 port without hassle.

$3.25*
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The Monoprice 101128 DIN5F to MDIN6M adapter is a simple, purpose-built accessory designed to bridge the gap between legacy AT keyboards and PS/2 ports. If you have an older keyboard with a 5-pin DIN connector that you want to keep using on a system equipped with PS/2 inputs, this compact 6-inch adapter provides the physical conversion needed without any software or drivers. It is a passive adapter, meaning it remaps the pin connections between the two connector standards without active signal processing.

Weighing just 0.353 ounces and measuring 8 x 1.1 x 0.8 inches in packaging dimensions, the adapter is lightweight and unobtrusive. It is worth noting that Monoprice states specifications and appearance may change as they update their product line, so the item received may differ slightly from published details. For anyone maintaining older hardware setups or preserving a favorite mechanical AT keyboard, this adapter offers an affordable and straightforward connectivity solution.

Key Features

Keyboard extension adapter for connecting legacy AT keyboards to PS/2 ports

Monoprice continually strives to improve its product line to bring our customers the best products available

Therefore changes may be made to listed specifications without prior notice

Item received may not match photo or specs shown

Specifications

Connector Input
DIN 5-Pin Female (AT Keyboard)
Connector Output
Mini-DIN 6-Pin Male (PS/2)
Cable Length
6 Inches
Item Weight
0.353 Ounces
Dimensions
8 x 1.1 x 0.8 Inches
Brand
Monoprice
Model
101128

Pros & Cons

👍 Pros

  • Enables continued use of legacy AT keyboards on systems with PS/2 ports
  • Compact 6-inch length keeps the adapter unobtrusive and close to the port
  • No drivers or software required for plug-and-play operation
  • Inexpensive solution compared to replacing a working legacy keyboard

👎 Cons

  • Only converts in one direction—AT to PS/2—so it cannot adapt PS/2 keyboards to AT ports
  • Does not provide USB connectivity, limiting its usefulness on modern systems without PS/2 ports
  • Specifications and appearance may vary from what is listed, per manufacturer notice
  • Very limited feature set as a simple passive adapter with no signal conversion or enhancement

Frequently Asked Questions

It converts a 5-pin DIN (AT keyboard) connector to a 6-pin mini-DIN (PS/2) connector, allowing older AT keyboards to plug into PS/2 ports.
It is designed for standard AT keyboards that use a 5-pin DIN connector. Compatibility depends on the keyboard adhering to the AT protocol, which most legacy AT keyboards do.
No, this is a passive adapter that requires no drivers or software. Simply plug it in and the connection is ready.
No, this adapter is directional—DIN5 female to Mini-DIN6 male—so it only adapts AT keyboards to PS/2 ports, not the reverse.

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