Sony a7C II Memory Card Recommendations

To take full advantage of the power the Sony a7C II has to offer you’ll need an SD card that’s fast enough. Here are some practical recommendations.

Sony a7C II interchangeable lens mirrorless camera
Text & Photos By David Coleman
Last Revised & Updated:
Topics: Sony, Sony a7C II

I MAY get commissions for purchases made through links in this post.

Like most cameras, the Sony a7C II doesn’t come with a memory card included as standard. So unless you’ve picked up a bundle that a retailer has put together that includes accessories like memory cards, you’ll have to pick them up separately.

But just putting any old SD card in an a7C II might lead to disappointment if you can’t take full advantage of the camera’s powerful features.

Sony a7C II SD Card Quick Recommendations

If you’d just like to cut to the chase with some quick recommendations, here are some good options:

ProGrade Digital V90 UHS-II
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 64GB, 128GB, 256GB, 512GB
Lexar Professional 2000x V90 UHS-II
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB
SanDisk Extreme Pro V90 UHS-II
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB
Delkin Devices Power V90 UHS-II SD Card
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB
Canvas React Plus V90 UHS-II
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB
PNY EliteX-PRO90 V90 UHS-II
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 64GB, 128GB, 256GB
Angelbird AV PRO SD MK2 V90 UHS-II
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 64GB, 128GB, 256GB, 512GB

I have a lot more detail below, but the upshot is that any of these are fast enough, are readily available, and are generally good value for money.

In typical Sony style, this camera goes by several names. I’m calling it the Sony a7C II here, but it also goes by ILCE-M2, a7C2, α7CII, and Alpha 7C II.

Sony a7C II Memory Card Compatibility & Requirements

The a7C II has very high bitrate video capabilities—up to 600 Mbps in some combinations of settings at 10-bit 4K30—as well as high-speed burst photo modes of up to 10 frames per second of full-size RAW files.

But a key thing to know is that if you don’t use SD cards that are fast enough, you run the risk of not being able to use those features or even losing footage or photos.

While it’s not hard to find memory cards that are fast enough, there are so many cards on the market and so much marketing material that it’s not always clear which cards will work.

Practical Recommendations

This is why I’ve put together this page: to provide some practical recommendations on which SD cards to buy for the a7C II so that you can get out shooting sooner and use all the capture features the camera has to offer.S

My emphasis here is on memory cards that offer a good combination of meeting the camera’s technical requirements, are from well-known and reputable manufacturers, are readily available at major retailers, and provide good value for money. This is not designed as a definitive listing of every SD card that will work well in the a7C II—there are others that can also work well—but I’ll do my best to keep it updated as new memory card models are released and I have a chance to use them.

Sony a7C II Memory Card Recommendations in Detail

Here’s more detailed information on these SD card recommendations for the Sony a7C II.

ProGrade Digital V90 UHS-II SD Card

ProGrade Digital V90 UHS-II
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 64GB, 128GB, 256GB, 512GB

ProGrade Digital is a brand that might not be instantly familiar because it's quite new (although they've been making great progress in brand awareness in the past few years). It was created amongst the fallout from the upheaval at Lexar several years ago, with some of the experts leaving to start their own company.

ProGrade Digital is catering to the top end of the market, and having used several of their cards, I've found them to be excellent. (I also highly recommend their card readers, which are my main card readers now.)

Buy at: Amazon | B&H Photo

SanDisk Extreme Pro V90 UHS-II SD Card

SanDisk Extreme Pro V90 UHS-II
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB

SanDisk is probably the best-known of the SD card manufacturers listed here, and the Extreme Pro range is their top model.

One thing to note with SanDisk cards is that they recycle their model names. So you can find Extreme cards that are older and slower. And, even more confusingly, you can also find another version of this card widely available—there are Extreme Pro UHS-I and UHS-II versions. The one I'm listing here is the one is the UHS-II version that is rated for 300 MB/s and V90. There are also UHS-I Extreme Pro cards that are rated for 170 MB/s and 200 MB/s.

You'll probably find those older versions work just fine--it really depends how far back you go--but you can tell the latest version because it's labeled with both V90 and UHS-II.

Buy at: Amazon or B&H Photo

Lexar Professional 2000x Gold V90 UHS-II

Lexar Professional 2000x V90 UHS-II
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB

This is the fastest card in the Lexar Professional line and is available in sizes from 32GB up to 256GB.

Buy at: Amazon or B&H Photo

PNY EliteX-PRO90 V90 UHS-II SD Card

PNY X-PRO 90 V90 UHS-II
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 64GB, 128GB, 256GB

New Jersey-based PNY have been making very good flash memory for quite some time, and in my own tests I've found this card to be very fast--even slightly faster than the speeds they claim on the box. It comes in storage capacities of 64GB, 128GB, or 256GB.

Buy at: Amazon or B&H Photo

Kingston Canvas React Plus V90 UHS-II SD Card

Kingston Canvas React Plus V90 UHS-II
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB

Kingston is another brand that isn't as well known as some of the others, but they've been making reliable memory cards for a very long time. As a brand, they don't tend to focus on the cutting edge speeds but rather on reliable and good-value memory cards.

But this card is an exception to that. It's Kingston's fastest model in their SD card lineup, designed for 4K and 8K video production and cinema cameras. And it's very quick indeed. It's available in sizes from 32GB to 256GB.

Buy at: Amazon or B&H Photo

Delkin Devices Power V90 UHS-II

Delkin Devices Power V90 UHS-II SD Card
  • Type: SDXC / SDHC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 32GB, 64GB, 128GB, 256GB

Delkin Devices have actually been around for years, but a few years ago they overhauled their SD card lineup to make it both clearer and more competitive. The Power range is their fastest line. This card is rated at V90 with UHS-II.

Buy at: Amazon or B&H Photo

Angelbird AV PRO SD MK2 V90 UHS-II SD Card

Angelbird AV PRO SD MK2 V90 UHS-II
  • Type: SDXC
  • Video Speed Class: V90
  • UHS Bus Interface Type: UHS-II
  • Storage Capacities: 64GB, 128GB, 256GB, 512GB

Angelbird is a relatively new entrant in the memory card game, and they're a boutique manufacturer catering to the very top end of the market. And in my experience, their reputation for excellence is well deserved. These cards aren't always widely available, but they're well worth trying to track down. There's also a V60 version. It's also very good, but the one I'm including here is their faster V90 card.

Buy at: Amazon | B&H Photo

Why Use a Fast Memory Card in the Sony a7C II?

You can use slower SD cards in the a7C II. Many of the basic camera functions like standard single-shot stills photography or low-bitrate video recording will work with slower cards for the simple reason that in those modes it’s not as crucial for the card to be able to keep up with a large stream of data being thrown at it in a short period of time.

The modes where you’ll run into trouble are the high-bitrate recording (eg. 4K or slow motion) or the high-speed photo burst modes that take sequences of still images in rapid succession. If the card is too slow to keep up with those, you can get unwanted side effects like the recording stopping unexpectedly, dropped frames, or the burst sequence being interrupted.

That’s why I’m focusing here on cards that allow you to use all of the a7C II’s capture modes: because I’m assuming that most people who shoot with an a7C II probably want to have the option available of using the camera to its full potential. But if you never plan to use the high-bitrate video modes or the very high-speed burst photo modes, then you can get away with slower cards and cards that are UHS-I.

How to Format the SD Card on the Sony a7C II

You can find the format function on this camera under:

Menu > Shooting > Media > Format

There’s a choice of Quick Formating or Full Formating. For general day-to-day use, quick formatting is appropriate. Full formatting is best if your memory card is slowing down, throwing errors, or you really need the data to be securely wiped from the card. I have a separate post on the difference between quick format and full format.

How to Format SD Cards on a Computer

It’s always best practice to format memory cards in the camera you’re going to use them in, but if that’s not possible or not what you want to do, you can also format cards using a computer. But there are some things to know when formatting SD cards to minimize the risks of your camera having problems with them. So I’ve put together guides on how to format SD cards on Mac and how to use the free SD Card Formatter app for Windows or Mac.

Images and product information from Amazon PA-API were last updated on 2024-02-26 at 15:45. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon Site at the time of purchase will apply to the purchase of this product.

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David Coleman

I'm a professional photographer based in Washington, DC. Seven continents, up mountains, underwater, and many places in between. I've been shooting for 30+ years, and my photos and time-lapse videos have appeared in a bunch of different publications, from major newspapers to magazines and books, billboards, TV shows, professional sports stadiums, museums, and even massive architectural scrims covering world-famous buildings while they're being renovated. You can see some of my travel photography here and here.

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