Are you looking for the most reliable SD memory cards to use with your Sony a9? The following is a guide that will assist you in acquiring the most highly suggested and quick SD cards for use in your Sony a9 mirrorless camera.

Both UHS-I and ultra-fast UHS-II SD cards can be used in the first card slot of the Sony a9, while UHS-I SD cards can be used in the second card slot. The Sony a9 includes two SD memory card slots. Therefore, if you want to get the best performance out of your Sony a9 mirrorless camera, you should invest in both a quick UHS-II card and a regular UHS-I card.

Continuous shooting at up to 20 frames per second, recording of internal UHD 4K video, and shooting with an expanded sensitivity range to ISO 204,800 are all capabilities of the Sony a9, which utilizes a full-frame 24.2 megapixel Exmor RS stacked CMOS sensor and a BIONZ X image processor. Additionally, the Sony a9 is capable of shooting in RAW format.

Therefore, if you want to get ultra high read speeds (transfer speed) and write speeds (fast buffer clearing time) you need to get the most out of the professional-level Sony a9 camera, and some SD memory cards that are quick enough and reliable are your best choice. This is especially true when you are shooting in continuous mode or recording 4K videos. The SD cards listed below are our top recommendations for use in the Sony a9 mirrorless camera and are ranked on speed as well as price. Simply pick the option that appeals to you the most!

The Highest-Performing UHS-II SD Memory Cards Designed for the Sony a9

1. The fastest UHS-II SD card currently available is the Sony SF-G Tough UHS-II Card (300 MB/s, V90).

Highly recommended! A quick UHS-II SD card is an absolute necessity if you want to record in DCI and UHD 4K, as well as take a lot of photos of sports and action, especially if you want to do it frequently. Do you want the quickest UHS-II SD cards that have a rating of V90? The best option is the Sony SF-G Tough Series UHS-II Memory Cards, which come in capacities of 32GB, 64GB, and 128GB and offer maximum read speeds of up to 300 MB/s and maximum write speeds of up to 299 MB/s respectively.

Because it has a speed class rating of V90, the minimum write speeds are assured to remain at or above 90 MB/s at all times. Therefore, if you are looking for the fastest write speed with a rating of V90 as well as exceptionally high read rates in the range of 250-300MB/s for transferring images from the card to a computer, the cards that are recommended for you are the ones that have those specifications.

2. Lexar Professional 2000x UHS-II Card (300 MB/s, V90) – Best Value

Strongly suggested and by far the best deal! The Lexar Professional 2000x UHS-II card offers super-fast speeds for both writing and reading files, with maximum read speeds of up to 300 MB/s and maximum write speeds of up to 260 MB/s. Additionally, you can get a free Lexar SD UHS-II Reader for high-speed file transfer from card to computer, which dramatically accelerates workflow.

Because it has a speed class rating of V90, the minimum write speeds are assured to remain at or above 90 MB/s at all times. It is the ideal accessory for any camera that is compatible with UHS-II and can record 4K and Full HD footage as well as have a fast continuous shooting speed of 8fps or more.

It will take significantly less amount of time for the buffer to clear, which will allow you to fire more shots.

3. The Sony SF-G UHS-II Card with a transfer speed of 300 MB/s

Even though they are rated U3 and V30, the Sony SF-G UHS-II Cards have the same lightning-fast maximum read speeds of up to 300 MB/s and the same lightning-fast maximum write rates of up to 299 MB/s as the SF-G Tough Cards.

Continuous shooting and recording of 4K video are both options that work really well with this camera. Because it has a speed class rating of U3, the minimum write speeds are assured to remain at or above 30 MB/s at all times.

4. SanDisk Extreme PRO UHS-II Card with a transfer speed of 300 MB per second

The SanDisk Extreme PRO UHS-II SDXC Memory Cards are capable of achieving maximum read rates of up to 300 MB/s and maximum write speeds of up to 260 MB/s. These memory cards were designed specifically for use by professional photographers and videographers.

Incredible in its swiftness! Ideal for shooting in continuous shutter bursts and quick succession, as well as recording video in 4K resolution. Because it has a speed class rating of U3, the minimum write speeds are assured to remain at or above 30 MB/s at all times.

5. UHS-I SD Memory Cards That Perform the Best for the Sony a9

The SanDisk Extreme PRO UHS-I Card 170 MB/s (V30, U3) is currently the fastest UHS-I SD card on the market.

Very strongly suggested! Memory cards with the UHS-I standard can be used in the second card slot of the Sony a9, and the SanDisk Extreme Pro 170 MB/s UHS-I card is currently the fastest UHS-I SD card available (at an affordable price). The SanDisk Extreme Pro 170MB/s UHS-I cards are great for capturing full HD, 3D, and 4K video, in addition to raw and burst photography since they have to write rates that can reach up to 90 MB/s and read speeds that can reach up to 170 MB/s.

In addition, SanDisk Extreme Pro UHS-I cards have a speed class rating of V30 and the U3 standard. This certification ensures that the cards can write at a minimum speed of 30 MB/s. Sizes of 64GB, 128GB, 256GB, and 512GB are all available to choose from. The cards are guaranteed to work with any device that supports SDXC and come with a limited warranty that lasts a lifetime.

7. SanDisk Extreme UHS-I SDXC Card (V30, U3)

The SanDisk Extreme UHS-I SDXC Card (V30, U3) supports extremely fast read speeds of up to 150MB/s and write speeds of up to 70MB/s, making it an ideal choice for fast-action or continuous burst mode photography, in addition to full HD, 3D, and 4K video. It is available in storage capacities of 64GB, 128GB, and 256GB. The inadvertent deletion of card data can be prevented to some extent by a write-protect switch that is integral to the card.

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Corey
Freelance journalist Corey has been writing about digital photography since 2006, first as a deputy editor and then as the editor of a variety of photographic journals. Featuring expert product reviews and in-depth features

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