Best Sony A300 Memory Card

By Nathaniel Stephan
Last Updated: April 15, 2020
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Best Sony CF Memory Cards

The biggest Compact Flash memory card that is fully compatible with the Sony A300 is 32GB. There could be compatiblity issues if you use a bigger card.

The memory limitation comes from the camera using the FAT32 file system. The A300 can not format a card to larger than 32GB.

If you're in a rush, my recommended CF memory card is:

best Sony compact flash memory card

SanDisk Extreme 32GB CF Card

  • Read speeds up to 120MB/s.
  • Write speeds up to 85MB/s.
  • Water, x-ray, & shock proof.

Once you have a memory card, broaden your creativity with another lens. Go and visit the 6 Best Sony A300 lenses.

Best CF Cards

The best value CF card is going to be either 32GB or 16GB. Smaller or larger cards are going to have a worse value per GB.

A professional card doesn't add a large amount to the price. Having a high-speed card will eliminate the need to replace the card with a camera upgrade.

Recommended CF Cards

best Sony compact flash memory card

SanDisk Extreme 32GB Compact Flash Card

  • Read speeds up to 120MB/s.
  • Write speeds up to 85MB/s.
  • Sustained data recording of 20MB/s.
  • Water, x-ray, & shockproof.
16gb compact flash card

SanDisk Ultra 16GB CompactFlash Card

  • Speeds up to 50MB/s.
  • Excellent reliability and value.
  • Ideal for mid-range DSLRs.

32gb cf card

Lexar Professional 1066x 32GB CompactFlash Card

  • Transfer speeds up to 160MB/s.
  • Video Performance Guarantee sepc VPG 65.
  • Limited lifetime warranty.
SD to CF adapter

SD to Compact Flash Card Adapter

  • Cheap option if you already have an SD card.
  • Supports SD, SDHC, SDXC cards with a 128GB max.
  • CF Type 1 size.
  • A MicroSD version is available.

Compact Flash Card Types

Compact Flash cards come in two sizes. The cards are known as Type I or Type II.

The difference between the types is how thick the cards are. The length and width of the cards are the same.

  • Type I - 3.3mm thick
  • Type II - 5mm thick

The Type II spec allowed for the use of Microdrives in the Sony A300. A Microdrive was a little mechanical harddrive, the size of a CF card.

When Compact Flash memory cards were first released they had high prices and limited storage capacities. Microdrives made it possible to have large storage sizes.

Microdrives are no longer being made. Due to their mechanical nature, failure was a matter of time. So you can't even find them used.

SD to Compact Flash card adapters also use Type II slots. The adapters allow you to use SD or Micro SD cards in a Compact Flash slot.

Card Reader

UGREEN CF Card Reader

The UGREEN 4-in-1 card reader is what I use with my CF cards.

The UGREEN card reader uses USB 3.0. Using the card reader will allow transfer rates that are faster than what the Sony A300 can achieve.

The reader can read these memory card types:

  • CompactFlash Cards
  • SD, SDHC, & SDXC Cards
  • Memory Stick (MS), MS Pro, MS PRO-HG, & MS XC DUO
  • MicroSD, Micro SDHC, & Micro SDXC Cards

Avoiding Card Read Errors

One of the most common errors with cameras that use Compact Flash cards are damaged card slot pins. When a pin is bent, you could see a 'unable to use card' error.

To avoid bending pins, don't force a CF memory card into the Sony A300. The extra space for a Type II card allows a CF card to be out of alignment.

If the compact flash card won't effortlessly slide into the slot, take it out and check the alignment of the memory card. Also, check to see if these is any damage to the memory card.

If it looks undamaged, carefully position the compact flash card and make another attempt.

Related Cameras

The best Sony A300 memory card can also be used in the following cameras:

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