Sony A6600 Memory Card Compatibility

By Nathaniel Stephan
Last Updated: October 15, 2019
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Sony A6600 Memory Card Compatibility

The Sony A6600 is able to use two different kinds of memory cards. Sony XC-HG Duo, PRO-HG Duo, and PRO Duo can be used in as well as SDXC, SDHC, and SD memory cards.

You'll find is only space for only one memory card to be in the camera at a time. You will need to make a decision between an SD or PRO Duo card.

PRO Duo memory cards are a proprietary memory card format held by Sony. Because of that, SD cards are cheaper and can provide better performance than PRO Duo cards.

In a rush? My unbiased and professional recommendation is to get this SD card to use in the A6600:

SanDisk Extreme Pro UHS-I SDHC Memory Card

SanDisk Extreme Pro 32GB SDHC Memory Card

The best price to performance ratio. Fast enough to use in a future camera.

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 memory cards.

You do not need to purchase a card from SanDisk for your Sony ILCE-6600. Look for SD cards with impressive names. That will make sure you get fast read/write rates, dust resistance, and more professional features.

I have not run into issues with Lexar Professional or PNY Elite Performance memory cards.

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

If you are looking to spend less, don't buy a cheap card. You will be better off buying a professional-quality card with a smaller capacity.

Recommended SD Cards

SanDisk Extreme Pro UHS-I SDHC Memory Card

SanDisk Extreme Pro 32GB SDHC Memory Card

  • Best value for the money.
  • Capacities from 16 GB to 128 GB.
  • Transfer speeds up to 80 MB/s.
  • Class 10.
  • UHS-I
Lexar 633x 23GB UHS-I SDHC Memory Card

Lexar Professional 633X 32GB SDHC UHS-I Card

  • High speed card.
  • Capacities from 16 GB to 1 TB.
  • Transfer speeds up to 95 MB/s.
  • Class 10.
  • UHS-I/UHS-III.
PNY Flash Memory Card Elite Performance 32GB SDHC UHS-I

PNY Elite Performance 32GB SDHC Card

  • High quality card.
  • Transfer speeds up to 95 MB/s.
  • Class 10.
  • UHS-I.

Sony A6600 SD Card Compatibility

SD, SDHC, and SDXC cards can be used by the Sony A6600. If you'd like the best performance, use a card.

The most recent SDUC memory cards can't be used with the A6600.

Currently, there are four types of Secure Digital (SD) memory cards. Newer card specs increase tech that allows for greater storage capacity as well as faster transfer rates.

  • 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

The speed rating of an SD card is dependant on the sequential read and write speeds. The speed of an SD card is essential for continuous shooting in addition to video.

A slow card can reduce the number of continuous frames the Sony A6600 can take. This is because the buffer in the camera is not able to write to the memory card quickly enough.

When shooting video, a slow memory card can cause recording to stop. The video file may also end up being corrupted. If you intend to capture video, it is critical the memory card you use meets the minimum requirements of the camera.

Read speed is important for transferring files to a computer or laptop. If you are filling up cards with images or video, a memory card with a fast read speed will cut down on 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 A6600 requires no less than a Class 4 SD card.

An SD memory card is given a Class rating based on the sustained continuous write speed of the card. Class 10 is the top rating, even though SD memory cards can be purchased that are many times faster.

Here are all of the Class ratings and their applicable 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

Nearly every SD memory card worth picking for the Sony A6600 will be a Class 10 SD card. In the time since the announcement of the camera, SD cards have gotten much 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 is found in SDUC, SDXC, and SDHC cards. The UHS bus cards to achieve increased transfer rates.

Three separate specifications exist. They are UHS-I, UHS-II, and UHS-III.

You can determine the UHS rating of a memory card by examining the front of the card. If the SD card has UHS, a Roman numeral I, II, or III can be found on the front of the memory 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 A6600 PRO Duo Card Compatibility

One PRO-HG Duo or PRO Duo memory cards can be used in the Sony A6600. 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 will need to hand over more to buy a PRO Duo memory card than an equivalent SD card. Considering the price difference, I will not recommend purchasing a PRO Duo card for use in a A6600.

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.

  • 4GB - 1,160 images
  • 8GB - 2,320 images
  • 16GB - 4,640 images
  • 32GB - 9,280 images

Related Cameras

There is nothing more you need to determine about PRO Duo and SD cards. The SanDisk Extreme Pro 32GB is the best Sony ILCE-6600 memory card.

Here are a few more cameras that use similar memory cards as the Sony A6600:

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