What Is Ac 97 Connector?

The AC 97 connector is an audio interface used in personal computers to connect audio devices like speakers, microphones, and headphones. This interface is commonly found on motherboards, sound cards, and audio controllers. The abbreviation AC stands for Audio Codec, while the number 97 denotes the year of its introduction, which was in 1997.

The AC 97 connector is a standardized interface that has become a crucial feature in modern PCs. It offers high-quality audio output and input with a bitrate of up to 48 kHz, making it an ideal choice for multimedia applications, gaming, and VoIP applications. This interface is essential for those who require superior sound quality for their work or entertainment purposes. Whether you’re an audiophile or a casual computer user, the AC 97 connector plays a significant role in enhancing your overall experience.

What is AC 97 Connector?

AC’97 (Audio Codec ’97) is an audio codec standard developed by Intel in 1997.

The AC’97 connector is a standard audio connector that is typically found on older motherboards and sound cards.

The AC’97 connector consists of a pair of 25-pin connectors that carry analog audio signals between the motherboard or sound card and the peripheral device that uses the audio signal, such as speakers or headphones.

The AC’97 connector is used to connect audio devices to a motherboard or sound card, providing high-quality sound for multimedia applications and entertainment.

The AC’97 connector supports a variety of modes, including 2-channel stereo, 5.1-channel surround sound, and even 7.1-channel surround sound, depending on the hardware configuration.

The AC’97 connector is a low-cost, high-quality audio solution that has been widely adopted in the PC industry, making it a popular choice for home and business users alike.


1. What is an AC 97 connector?
An AC 97 connector refers to a standard audio connector used in computer systems to connect the mainboard or motherboard to the audio codec or sound card.

2. What are the typical specifications of an AC 97 connector?
An AC 97 connector is a 40-pin connector that used four pins for power supply and 36 pins for audio signals. It supports stereo audio and has a maximum sampling rate of 48 kHz.

3. What are the advantages of using an AC 97 connector?
Some of the advantages of using an AC 97 connector include its compatibility with most sound cards and audio codecs, its low-cost design, and its ability to provide high-quality audio output.

4. What are the differences between an AC 97 connector and an HD Audio connector?
One of the main differences between an AC 97 connector and an HD Audio connector is that the latter has 10 more pins and a maximum sampling rate of 192 kHz. HD Audio also supports multi-channel audio, while AC 97 is limited to stereo audio.

5. Can I connect an AC 97 connector to an HD Audio interface?
While it is possible to connect an AC 97 connector to an HD Audio interface, the audio output quality may be compromised. It is recommended to use the appropriate connector for the audio device to ensure optimal performance.


In summary, the AC 97 connector is a standard interface found on many motherboards that allows an audio card to be connected. This connector became widely used in the late 1990s and early 2000s and has since been replaced by other more modern interfaces. Regardless, understanding the purpose of this connector can provide a greater appreciation for the evolution of audio technology in modern computing.

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