DB9 to DB25 Serial Adapter - M/F

Convert a DB25 male port into a DB9 male connector

Product ID: AT925MF

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  • 1x DB9 male connector
  • 1x DB25 female connector
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€2.99 EUR
VAT not included in the price
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This DB25 to DB9 Serial Adapter converts a 25-pin serial port to a 9 pin male connector.

Backed by Lifetime Warranty, the DB25 to DB9M Serial Adapter is designed for durable, reliable performance and connectivity.


  • Converts a 25 pin serial port to a 9 pin

The StarTech.com Advantage

  • Guaranteed reliability

Partner Numbers

  • CMS Distribution V234789
  • Esprinet AT925MF
  • Exertis 0010012434
  • Exertis IE STCAT925MF
  • Ingram Austria V931807
  • Ingram Germany V931807
  • Ingram IE V931807
  • Ingram Micro Belgium 1861058
  • Ingram Micro España V931807
  • Ingram Micro France V931807
  • Ingram Micro Italy V931807
  • Ingram Micro Netherlands 1861058
  • Ingram Micro UK V931807
  • Ingram Switzerland V931807
  • Tech Data - France 4783253
  • Tech Data - Italy 4783253
  • UPC 065030200943


Warranty Information Warranty Lifetime
Connector(s) Connector A 1 - DB-9 (9 pin, D-Sub)
Connector B 1 - DB-25 (25 pin, D-Sub)
Packaging Information Package Height 125 mm [4.9 in]
Package Length 0.0 cm [0.0 in]
Shipping (Package) Weight 0.0 kg [0.1 lb]
Package Width 9 cm [3.5 in]
Physical Characteristics Product Height 1.6 cm [0.6 in]
Product Length 4.7 cm [1.9 in]
Weight of Product 43 g [1.5 oz]
Product Width 57 mm [2.2 in]
Color Beige
What's in the Box Included in Package 1 - 9 to 25 Pin Adaptor M/F


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Frequently Asked Questions

Before You Buy

A straight-through serial cable is the most common type of serial cable, used to connect a Data Terminal Equipment (DTE) device (for example, a computer) to a Data Communications Equipment (DCE) device (for example, a modem). The pinout of the serial connectors on both sides of the cable are exactly the same with a straight-through serial cable.

A null modem serial cable (frequently called a crossover cable) is used to connect two DTE devices together without the use of a DCE device in between. For this to happen, the Transmit (TXD) and Receive (RXD) pins on one of the serial connectors are flipped.

To confirm the type of serial cable that is required for your device or configuration, refer to the information provided by the manufacturer.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

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