Speed class: Is there a way to tell the speed class of a micro SD card?
1218853
yes, i read too that its best to root with a class 6 or higher and this one looks like its a class 4?
545502
From what I could find out, the higher the class the faster it can down load a picture to the card. Class 4 is 4 Mbps. Class 6 is 6 Mbps, and Class 10 is 10 Mbps
1951893
Right after the SanDisk TM there is a number in the circle - that is the class - or so I've been told
697488
Would say no if its a class 2, its a no . Would have to go to a class 10 Ultra or extreme pro .Newer SD memory is a class 4 ,Faster speeds are with the Class 10 SD memory
2118842
I bought an 8GB HCSD, because I wanted to have more space. Manufacturer claims is a class 6 card, which is supposedly the fastest (or one of the faster cards). Using it, I found: 1. The RAW shooting, would take about the same time that took my 2G MicroSD with adapter, that is, if you're planning about taking bursts of pictures RAW, that won't do the trick. 2. I found the bigger size of videos is 2GB, and that appears to be limited by the filesystem of the cards it self. That's around 23 minutes in the highest quality mode.
1975056
Hello John, Unlike card write speeds that measure maximum performance, class ratings measure the minimum sustained speed required for recording an even rate of video onto the card. The class rating number corresponds to the transfer rate measured in megabytes per second. Class 2 cards are designed for a minimum sustained transfer rate of 2 megabytes per second, while Class 10 cards are designed for a minimum sustained transfer rate of 10MB.
545570
Probably class 10, with 20MB/s rate. See http://kb.sandisk.com/app/answers/detail/a_id/1996/kw/class%20rating%20of%20sandisk%20extreme%2032
451316
i use this card:Kingston 16 GB Class 4 MicroSDHC Flash Card with SD Adapter SDC4/16GB
118024
KE,I suspect you are confusing the 'Ultra II' with 'Class 2'. On each Sandisk Ultra II card it says '15MB/S'. So even if in real life you only get half of that speed, it is still much faster than class 2 (which means 2MB/S minimum).
1845543
What I received was a 8GB Class 4 card. So, the capacity I received was proper, but the speed is not...which to be honest I did not check until right now and could definitely lead to the performance differences I am seeing between this Raspberry Pi and the others that I have.
2100484
I didn't know myself, so I looked it up on PCMag.com. Here is my edited version, for a (fairly) short answer: SD cards are also available in various speeds. If you're using a point-and-shoot camera... speed class won't matter much. If you're shooting high-resolution ... photos ...you need a quick card to take more than two or three shots at a time. SD cards are generally described by their Speed Class, ranging from Class 2 (slowest) to Class 10 (fastest). ...Class 2 is suitable for standard-definition video recording, while Class 4 and Class 6 can record high-definition video. Class 10 is the card for HD video ... According to Sandisk...Class 4 cards offer read/write speeds of 15 MBps, Class 6 cards ...20MBps, and Class 10 cards ...30MBps. Kingston...describes its Class 4 (at) 4MBps..., Class 6 at 15MBps, and Class 10 at 40MBps... ...Since even smartphones can record HD video these days, Class 2 cards aren't the best choice. They're simply too slow to record HD video... For their complete description, go here: http://www.pcmag.com/article2/0,2817,2388408,00.asp Hope this helps! Mark
1465042
Class 6 micro sd card will work, a class 10 is too fast for it skips frames and class 4 has a few issues with being recognized fully. Class 6 cards are the best way to go
1427691
It takes a Micro SD card, but I have no idea if a high-speed one will work or not. I just opened my unit and tried the one from my Blackberry. I will have to go out tonight and look for a micro SD. Looking forward to trying the unit in an upcoming race.
1384310
the "Class" represents the minimum transfer rate you should see with these cards. Class 4 = 4MB/s Class 6 = 6MB/s Class 10 = 10MB/s There is an informative page on the kingston site at the following link: http://www.kingston.com/flash/sdhc.asp
930891
TZ3 Manual recommends a min mem card speed of 10MB/Sec. This is equivalent to 10MB/X where X = 150KB/Sec ~ 60X. That is, a card that is rated at a minimum of 10MB/Sec, or a card rated at a speed of 60X, will meet TZ3s max response capability. San Disk Ultra II cards meet this specification. Of course slower cards can be used. Beware of off-brand cards rated at 60X or higher that in fact do not meet claimed spec. SanDisk, Kingston, Panasonic etc name brand cards are reliable. Anything faster than 60X can also be used, but cost more and will not increase the speed of the camera.
545499
The class of a memory card determines how fast it can read/wright, the higher the number the higher the speed.
265467
the "Class" represents the minimum transfer rate you should see with these cards.Class 4 = 4MB/sClass 6 = 6MB/sClass 10 = 10MB/sThere is an informative page on the kingston site at the following link:http://www.kingston.com/flash/sdhc.asp