One of the latest memory card formats is CFexpress. Alexandria Huff from BorrowLenses wrote a great article on what you need to know.
When you are buying a new camera, a question you should always ask is "what kind of memory card does it take?" This is super important to know. No matter if you're shooting photos or video, you will need somewhere to store all your media. CFexpress is a relatively new memory card format out. Let's take a look a more in depth look.
What is CFexpress?
In short and simple terms, CFexpress is a new memory card format. But that's not entirely true. In reality, it's more of a family of subclasses of CFexpress. Let's discuss each subclass a little further, so you can know the differences.
CFexpress Type A
CFexpress Type A is the smallest, and slowest of all CFexpress cards. It only has a maximum write speed of 1 GB/s. As of right now, Sony is the only company making or using CFexpress Type A cards.
CFexpress Type B
CFexpress Type B has a form factor identical to XQD cards. With a simple firmware update, camera manufacturers can offer CFexpress Type B compatibility with the XQD slots. CFexpress Type B cards are larger then SD cards, which benefits them by being more rugged and durable, but they are smaller then Compact Flash or CFast cards. CFexpress Type B cards have a maximum write speed of 2 GB/s.
CFexpress Type C
The largest form factor, similar to Compact Flash, is CFexpress Type C. It has the fasted write speed with a maximum of 4 GB/s. As of right now, there are no consumer level cameras that take CFexpress Type C.
How Do CFexpress Cards Compare?
Let's take a look at this chart to see them compare:
Learn more about CFexpress Cards HERE