Pentax K-5 II Memory Card Compatibility

By Nathaniel Stephan
Last Updated: September 30, 2019
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Pentax SD Memory Card Compatibility

The Pentax K-5 II is able to use SD, SDHC, and SDXC memory cards. Continuous shooting and video need memory cards with fast card write speeds.

The memory card you choose has a large impact on the overall performance of your camera.

Want to skip the tech specs? Here is my suggestion on the card to get for the Pentax K-5 II:

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

In the time since the intro of Pentax K-5 II, the cost of SD cards has dropped.

Due to costs being affordable, it doesn't make financial sense to spend money on anything besides a professional-level card.

SanDisk Extreme Pro, Lexar Professional, and PNY Elite Performance cards are wonderful. I have never experienced corrupted data or a card physically fail with any of those memory cards.

Every single complication I have dealt with has been because of low-cost unbranded memory cards. Seeking to save around a buck is not worth it if your K-5 II is likely to experience issues.

If you want to spend less money, get a lower storage capacity card from a quality company. By making that choice, you will not have to be concerned about the shots stored on the SD card.

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.
PNY Elite Performance SDXC 128GB Memory Card

PNY Elite Performance 128GB SDXC Card

  • Lower priced card.
  • Transfer speeds up to 95 MB/s.
  • Class 10 & UHS-I.
  • Magnet Proof, Shock Proof, Temperature Proof, Waterproof.
Lexar Professional 1066X 128GB SD UHS-I Memory Card

Lexar Professional 1066x 128GB SDXC UHS-I 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.

Pentax K-5 II SD Card Compatibility

Only use SDXC, SDHC, and SD cards in the Pentax K-5 II. Check to ensure your camera is using the latest firmware.

The newest SDUC (Secure Digital Ultra Capacity) cards are not able to be used in the K-5 II.

You need to understand the four different types of Secure Digital (SD) cards that can be used. You can tell them apart by looking at their storage capacity.

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

Image Capacity

Pentax SD Memory Card Contacts

Listed here is a fast approximation of the volume of high-quality JPEGs photos you should expect to store on an SD card:

  • 16GB - 4,640 images
  • 32GB - 9,280 images
  • 64GB - 18,560
  • 128GB - 37,120

Speed, Class, & UHS Ratings

Card Speed

Speed ratings of an SD card is determined by the continuous write and read speeds. The write speed of an SD card is very important for continuous shooting and video.

Slows memory cards can cause a drop in the number of continuous images the Pentax K-5 II can capture. This is because the camera's buffer is not able to write to the card fast enough.

When shooting video, a slow card can cause a sudden end to shooting. The video file could also end up being corrupted. If you are going to record video, it is critical the SD card you use meets the required write speed for video.

Card read speed is important for transferring files to a computer. If you have cards that are full, an SD card with a fast transfer speed will cut down on the transfer time.

Speed Class Rating

Example of where to find SD Card Speed Class
The 10 inside of the C means the card is Class 10.

The continuous write speed of a card is represented by the Class rating. SD cards that have a write speed of 10MB/s will be rated Class 10.

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

Every name-brand card that you can purchase will be Class 10. You can determine the class rating of an SD memory card by finding a number inside of the C on the front label.

Ultra High Speed (UHS)

Example of an SD memory card with a UHS-I rating.
The UHS rating of a card can be determined by a Roman numeral I, II, or III on the label of the card.

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

Three different specifications have been made. They are called UHS-I, UHS-II, and UHS-III.

To find out the rating of an SD card, look at the front of the card. If there is a Roman numeral I, II, or III on the front of the SD memory card, that is the UHS rating of your SD 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

Related Cameras

Taking the details into consideration, the 128GB SanDisk Extreme Pro is the best memory card for the Pentax K-5 II. You're now ready for any future camera you buy.

Below are more pages on cameras related to the K-5 II:

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