Best Memory Cards for Sony a6400

The Sony a6400 is a popular mirrorless camera renowned for its exceptional image quality and impressive autofocus capabilities. To make the most of its features, it’s crucial to invest in a high-quality memory card that can keep up with the camera’s performance. Let’s dive into the details of the best memory cards for the Sony a6400.

In this article, we will explore the best memory cards for Sony a6400, considering factors such as speed, capacity, and reliability.

Understanding Memory Card Specifications

Before we explore the top memory card options for the Sony a6400, it’s important to understand the key specifications that determine a memory card’s performance:

  • Speed Class: Indicates the minimum sustained write speed of the card. The higher the class number, the faster the card.
  • UHS Speed Class: Determines the maximum bus interface speed of the card. UHS-I and UHS-II are the most common classes.
  • Card Type: Memory cards come in various types, such as SD, SDHC, SDXC, and microSD. Ensure compatibility with the Sony a6400.
  • Storage Capacity: Refers to the amount of data the card can hold. Choose a capacity that suits your needs.
  • Brand Reputation: Opt for reputable brands known for their reliability and durability.

Best Memory Cards for Sony a6400

UHS-I SD Cards:

UHS-II SD Cards:

Factors to Consider When Choosing a Memory Card

When selecting a memory card for your Sony a6400, consider the following factors:

1. Speed Class

Ensure the card’s speed class meets the requirements for your intended usage. A higher speed class is essential for capturing burst shots or recording high-resolution videos.

2. UHS Speed Class

If your camera supports UHS-II, consider investing in a UHS-II card for maximum performance. However, UHS-I cards are also compatible with the Sony a6400 and offer reliable speeds.

3. Card Type

Choose the appropriate card type (SD, SDHC, SDXC, or microSD) based on the camera’s specifications and your personal preferences.

4. Storage Capacity

Determine the amount of storage space you need based on your shooting habits and the size of your files. It’s recommended to have multiple memory cards to ensure you never run out of space during important shoots.

5. Brand Reputation

Stick to reputable brands known for their quality and reliability. Trusted brands often provide better performance and customer support.

How to Format a Memory Card for Sony a6400

To ensure optimal performance and compatibility, it’s advisable to format your memory card in the Sony a6400 camera itself. Follow these steps:

  1. Insert the memory card into the camera.
  2. Go to the camera’s menu and navigate to the setup options.
  3. Look for the format memory card option and select it.
  4. Confirm the formatting process.
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Formatting the card within the camera helps prevent compatibility issues and ensures the file system is optimized for the camera’s operations.


Investing in a reliable and high-performance memory card is crucial for maximizing the capabilities of your Sony a6400 camera. With the recommended options mentioned in this article, you can confidently capture stunning photos and videos without worrying about storage limitations or data transfer speeds.


Q1: Can I use a microSD card with the Sony a6400 camera?

Yes, you can use a microSD card with the Sony a6400 by using a compatible adapter.

Q2: What is the recommended minimum speed class for recording 4K videos?

For recording 4K videos, it’s recommended to use a memory card with a UHS Speed Class 3 (U3) or higher.

Q3: How many photos can a 128GB memory card hold on the Sony a6400?

The number of photos a 128GB memory card can hold depends on various factors, including the file format and compression settings. As a general guideline, it can store thousands of JPEG images or hundreds of RAW files.

Q4: Are UHS-I cards compatible with the Sony a6400?

Yes, the Sony a6400 supports both UHS-I and UHS-II cards. UHS-I cards offer reliable performance and are compatible with the camera.

Q5: Can I use Wi-Fi transfer with these memory cards?

Yes, the recommended memory cards mentioned in this article support Wi-Fi transfer, allowing you to conveniently transfer files from your camera to other devices.

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