Both ProGrade Digital Gold and Lexar Professional are lines of CFexpress Type B cards aimed at photographers and videographers who shoot long bursts or high-bitrate video. Because exact speeds, capacities and recommended cameras change by model and year, the best move is to match each card line to your camera’s published card list. Check the makers’ pages for current figures.
What CFexpress Type B Cards Do
CFexpress Type B is a fast card format used in many higher-end mirrorless and DSLR cameras. It allows large raw files to clear the camera buffer quickly and supports demanding video modes. A slower card can limit burst length or block certain recording modes.
What to Compare
| Factor | Why it matters |
|---|---|
| Write speed | Affects burst length and high-bitrate video |
| Sustained speed | Peak numbers can drop during long recording |
| Camera compatibility | Some cameras list approved cards |
| Capacity options | Match to shoot length and backup habits |
| Warranty and support | Useful if a card fails |
How to Choose Between Two Card Lines
- Open your camera maker’s support page and find the list of recommended or approved cards, if available.
- Check the video mode you need most. High-bitrate raw or intraframe video needs higher sustained writing.
- Compare the sustained write speed claims, not just the maximum figures.
- Pick a capacity that covers a full shoot without constant swapping, but not so large that one failure loses everything.
- Look at the warranty terms and how each company handles replacements.
- Buy a matching card reader. A card that writes quickly needs a reader that can match it for fast transfers.
Card Care Habits
- Format the card in the camera, not on the computer.
- Copy files to two places before clearing the card.
- Keep cards in a case, away from heat and moisture.
- CFexpress cards can run warm during long video, so allow breaks if the camera warns you.
- Buy from authorized sellers to avoid counterfeit stock.
When two card lines look close on paper, the deciding points are often practical. Check whether the maker supplies a recovery tool, how the card behaves in your camera during a long burst, and whether your workflow includes a fast reader. A card is only one part of the chain from camera to computer, so avoid spending effort on small differences that you will never notice in the field.
For critical jobs, many photographers keep two cards from the same line so that behavior is predictable between slots.
FAQ
Can I use a Type B card in any camera?
No. The camera needs a CFexpress Type B slot. Some cameras use XQD instead, and compatibility depends on the model.
Is a faster card always better?
Only if your camera can use it. Beyond what the camera can write, extra speed mainly helps with faster file transfers.
The Short Version
Both brands target professional work, so choose by your camera’s supported cards, the sustained speed you need and the warranty you prefer. Compare current listings on the makers’ pages and buy from authorized sellers.
