Pentax K-30 Memory Card Compatibility

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

SDXC, SDHC, and SD memory cards were manufactured to be compatible with the Pentax K-30. Fast write speeds are an essential element for continuous shooting and video.

You can reduce the performance of your camera by using the wrong SD card.

Don't care about the jargon? Here's my recommendation on the card to get to use with the Pentax K-30:

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

Since the intro of Pentax K-30, the price of memory cards has dropped.

Due to the cost being low, it does not be shrewd to pick anything but a pro-level SD memory card.

SanDisk Extreme Pro, Lexar Professional, and PNY Elite Performance cards have all worked well for me. I have never endured data errors or a card physically fail with those SD memory cards.

All of the trouble I have had has been with cheap unbranded SD cards. Trying to save a little bit of money isn't worthwhile if your K-30 is not going to function in the right way.

A great way to save money is to purchase a lower storage capacity memory card from a quality manufacturer. By doing this, you will not have to worry about the images 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-30 SD Card Compatibility

The only memory cards that can be used within the Pentax K-30 are SD, SDHC, and SDXC. Check to make sure that you have the latest firmware installed on your camera for the best performance.

The newest memory cards, SDUC (Secure Digital Ultra Capacity), are not usable in the K-30.

You should be aware of the four different kinds of Secure Digital (SD) cards that can be purchased. SD cards can be told apart from the storage capacity of the SD memory card.

  • 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

The following is an approximation of how many high-quality JPEGs photographs you should be expecting to save 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 memory card is based on the continuous write and read speeds. Memory card speed is very important for continuous shooting in addition to video.

Slows SD cards can cut down the number of continuous images the Pentax K-30 can capture. This is due to the camera's buffer not being able to write to the card quickly enough.

With video, a slow SD card can cause recording to end. The video file may also end up being corrupted. If you intend to shoot video, it is crucial the memory card you use meets the required continuous write speed for video.

Read speed is nice to have for transferring files to a computer. If you have cards that are full, a memory card with a fast read speed will save you 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.

A card receives a Class rating in line with its continuous write speed. SD cards that have a minimum write speed of at least 10MB/s are rated as 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 memory card that you can get online will have a Class 10 rating. You can verify the class rating of an SD card by looking for 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 (UHS) bus is a feature often found in SDUC, SDXC, and SDHC cards. UHS allows for increased file transfer rates.

There are 3 different versions. The three are UHS-I, UHS-II, and UHS-III.

To find the rating of an SD memory card, look on the label. If the memory card has UHS, a Roman numeral I, II, or III can be seen 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

Related Cameras

Taking the facts into consideration, the 128GB SanDisk Extreme Pro is the best memory card for the Pentax K-30. You're now prepared for any future camera you buy.

Listed here are more pages on cameras with similar specs as the K-30:

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