Sony A7Rii Memory Card Compatibility

By Nathaniel Stephan
Last Updated: October 16, 2019
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Sony SD Memory Card Compatibility

Two different types of memory cards can be used with the Sony A7Rii. Sony XC-HG Duo, PRO-HG Duo, and PRO Duo will work in plus SD, SDHC, and SDXC memory cards.

You'll find a single memory card slot in the A7Rii. You'll need to pick between a PRO Duo or SD card.

PRO Duo memory cards are a proprietary format that is controlled by Sony. For that reason, SD cards are cheaper and generally will have greater performance than PRO Duo cards.

Need a memory card now? My unbiased recommendation is this SD memory card in the A7Rii:

SanDisk Extreme Pro 128GB UHS-I SD Card

SanDisk Extreme Pro 128GB SD Card

  • Best value for the money.
  • Capacities from 32 GB to 2TB.
  • Transfer speeds up to 170 MB/s.
  • Class 10 & UHS-I
  • Temperature Proof, Water Proof, Shock Proof, and X-ray Proof.

Best SD Cards

SanDisk, Lexar, and PNY are brands that produce the best Memory cards. The best memory cards I have used have been SanDisk Extreme Pro SD cards.

You do not need to buy a card from SanDisk for your Sony ILCE-7RM2. Look for cards with cool names. That will mean you get fast transfer speeds, water resistance, and more features.

I have not had errors with PNY Elite Performance or Lexar Professional memory cards.

When I have encountered problems with cards has been when I have used cheap generic brands. Being cheap increases the possibility of card failure or data corruption.

If you would like to spend less, don't buy a cheap card. You will be better off buying a name-brand SD card with a reduced capacity.

Recommended SD Cards

SanDisk Extreme Pro 128GB UHS-I SD Card

SanDisk Extreme Pro 128GB SD Card

  • Best value for the money.
  • Capacities from 32 GB to 2TB.
  • Transfer speeds up to 170 MB/s.
  • Class 10 & UHS-I.
  • Temperature Proof, Water Proof, Shock Proof, and X-ray Proof.
Lexar Professional 1066X 128GB SD UHS-I Memory Card

Lexar Professional 1066x 128GB SD Card

  • Lexar Professional Silver Card.
  • Transfer speeds up to 160 MB/s.
  • Class 10 & UHS-I.
  • Includes Lexar Recovery Tool Software.
  • Designed for durability in harsh conditions.

Check price at: Amazon, Adorama, eBay

PNY Elite Performance SDXC 128GB Memory Card

PNY Elite Performance 128GB SD Card

  • Lower priced card.
  • Transfer speeds up to 95 MB/s.
  • Class 10 & UHS-I.
  • Magnet, Shock, Temperature, and Waterproof.

Check price at: Amazon, Adorama, eBay

Sony A7Rii SD Card Compatibility

SD, SDHC, and SDXC memory cards are usable with the Sony A7Rii. If you want to get the best performance, use an SD card.

The newest SDUC cards are not compatible with the A7Rii.

Currently, there are four specs of SD (Secure Digital) memory cards. New memory specifications increase features that allows for larger storage capacity and faster read/write speeds.

  • Secure Digital (SD) - 128MB to 2GB.
  • Secure Digital High Capacity (SDHC) - 4GB to 32GB.
  • Secure Digital eXtended Capacity (SDXC) - 64GB to 2TB.
  • Secure Digital Ultra Capacity (SDUC) - 4TB to 128TB.

SD Card Speed

Speed ratings of an SD memory card is dependant on the sequential read and write speeds. SD card file write speed is essential for clearing the buffer for continuous shooting in addition to recording video.

Slows SD cards can cause a drop in the number of continuous photos the Sony A7Rii can capture. This is because the camera's buffer will not be able to write to the card quickly enough.

When recording video, a slow memory card can cause an abrupt end to shooting. The video file might also end up being corrupted. If you are going to record video, it is crucial the memory card you use meets the required continuous write speed for video.

Card read speed is nice to have for file transfers to a computer or laptop. If you are filling up cards with images or video, a card with a fast read speed will reduce the transfer time.

Speed Class Rating

Example of where to find SD Card Speed Class
10 inside of a C showing that the SD card is Class 10.

The Sony A7Rii requires no less than a Class 4 SD card.

An SD card is assigned a Class rating based on the sustained continuous data write speed of the memory card. Class 10 is the maximum rating, even though SD memory cards are for sale that have a faster read/write speed.

Here you can see all of the Classes and corresponding minimum transfer rates:

  • Class 2 - 2MB/s
  • Class 4 - 4MB/s
  • Class 6 - 6MB/s
  • Class 8 - 8MB/s
  • Class 10 - 10MB/s or faster

Any card worth choosing for the Sony A7Rii will be a Class 10 card. In the time since the introduction of the camera, SD memory cards have gotten a good deal faster.

Ultra High Speed (UHS)

Example of an SD memory card with a UHS-I rating.
This card has a UHS-I rating. UHS-II and UHS-III cards will have II or III, respectively.

The Ultra High Speed (UHS) bus can be found in SDHC, SDXC, and SDUC cards. UHS memory cards to have increased write speeds.

Three different specs exist. They are UHS-I, UHS-II, and UHS-III.

To figure out the UHS rating of a memory card, look on the label. The presence of a Roman numeral I, II, or III on the front of the memory card, that is the UHS rating of the SD card.

  • UHS-I - Maximum transfer rate of 104 MB/s
  • UHS-II - Maximum transfer rate of 312 MB/s
  • UHS-III - Maximum transfer rate of 624 MB/s

Sony A7Rii PRO Duo Card Compatibility

One PRO Duo or PRO-HG Duo cards can be used in the Sony A7Rii. What PRO-HG signifies is that the memory card has a minimum read speed of 50mb/s and a 15mb/s minimum write speed.

You'll have to hand over double to buy a PRO Duo card than an equal SD memory card. Considering the price difference, I will not recommend purchasing a PRO Duo memory card for use in a A7Rii.

Image Capacity

Sony SD Memory Card Contacts

Below is an approximate estimation of how many large JPEG images you can expect to store on each size of SD card.

  • 32GB - 9,280 images
  • 64GB - 18,560 images
  • 128GB - 37,120 images
  • 256GB - 74,240 images
  • 512GB - 148,4800 images

Related Cameras

At this time you understand everything about SD and PRO Duo cards. The SanDisk Extreme Pro 128GB is the best Sony ILCE-7RM2 memory card.

Here are a few more cameras that use similar memory cards as the Sony A7Rii:

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