I noticed that when I remove the CFExpress card from my camera or reader, that it's pretty warm. None of my XQD cards do this and was just curious if this is just the way they are. It works fine, just gets toasty.
Yes, they tend to run hot. Also if you don't use the card, it is just sitting in the reader, some heat is generated. XQD cards in my CFexpress reader also is increased in temperature but not as
much as the CFexpress cards. XQD cards in an XQD reader, by contrast, are heated very little in my experience.
Sony did a very good job with XQD. Reliable, fast, no heat problems.
Depends on the brand. Delkin and Pro Grade tend to stay pretty cool. They warm up, but never get hot in my experience with Delkin, and I've seen some tests to confirm that, as shown below. SanDisk and Lexar tend to get pretty toasty.
Who makes NKI? The domain is in Kiribati (Gilbert Islands), which is quite strange.
There is a street adress in FL, but there are a half-dozen seemingly unrelated companies listed in the same suite. I guess you pay for a part of an office or a cubicle.
ilkka_nissila wrote:
Yes, they tend to run hot. Also if you don't use the card, it is just sitting in the reader, some heat is generated. XQD cards in my CFexpress reader also is increased in temperature but not as
much as the CFexpress cards. XQD cards in an XQD reader, by contrast, are heated very little in my experience.
Sony did a very good job with XQD. Reliable, fast, no heat problems.
I just tested a 128GB Sony card by copying 119 GB of R5 CR3 files to it, cooling it to 20-25°C, and then downloading the files to a PC with Downloader Pro (~2-3 minutes). The card was just a bit warm, maybe low-mid 40s°C. Then it was dismounted and reconnected, still visible to the OS. After 15 minutes, the card was no warmer than it was before, and the reader reached about the same temperature. I really don't see heat as an issue at all with the Sony card under that situation. I've experienced much hotter micro-SD cards and UHS-II SDxC cards about the same or a little warmer. I don't know what is up with the SanDisk and Lexar cards, but heat is the enemy of electronics.
