ProGrade Digital Memory Card - CFexpress 4.0 Type B for Cameras | Optimized for Express Transfer of Files & Large Storage | 512GB Gold Series

This is the first ProMedia Card of any type I have ever used. Based on my not necessarily scientific observation, the ProMedia CF card reads and writes faster than the equivalent SanDisk cards. More importantly, it does not near as hot when downloading to my laptop. Both of my SanDisk cards get so hot during the data transfer that they will eventually crash. (It is also faster than a nearly identical Lexmar card as well.)Faster, cooler and cost less (at time of purchase- has gone up $30 in the past few weeks) Still worth the price for the speed and reliability.

I thought the sustained write would be an issue at 20fps raw but it handled it perfectly (for now). I held shutter down for 14 seconds with no buffering (didn't bother continuing). Would I do that in real world use? No, not at all but at least I know I can do 3-5 seconds with no issues. I don't normally do video so didn't bother testing that but I'm sure it'll have no problem handling 4k 120 which is what I would use. 512gb gives me 5.7k raw images. More than sufficient. Very pleased with card!

Excellent card- runs smoothly and cool on a nikon Z9 - as described, and worth the price

Very Good, Professional Grade & No Issues...! I have always and only purchased Sandisk Extreeme Pro cards and thought to try this brand. So far so good, no issues recording 4k video on my Canon R5c camera body. I will buy more of these. Bill Mahon Photo

Fast write speeds to support video recording and high burst rates without buffer issues. The card works well as aspected. Although I understand avoiding plastics for the case for environmental reasons, the partially open paper replacement does not work for me in the field with dust, rain, or or humidity.

First of all my only dislike (other than price. Why did Prograde cheap out on the packaging? The cardboard memory card holder is cheap! I like to carry one card in the Z8 and two other cards in a backpack. I had to rummage through my desk to find an old plastic memory card holder to fit it. Still disappointed for the price that they charge for the cardboard.The card test faster on Black Magic Disk than my OWC 4.0 card. Also tested faster than my Angelbird 2.0 card which makes sense. We will see how it holds up, I will do some serious birding in the next week!

Needed a bigger CFexpress card to record video on a Nikon Z6 III. Was able to record 4k/60fps for a little over an hour with this card. Very happy with it so far.

Great product.