SD card class? What does it mean

[obear]

Yeah, I just got a 16GB micro SDHC if you want to meet up near me and see if it fits then you can. I got mine off amazon for about 50$.

[Jecht]

SD Speed Class Ratings

SDHC cards have SD Speed Class Ratings defined by the SD Association. The SD Speed Class Ratings specify the following minimum write speeds based on "the best fragmented state where no memory unit is occupied":[19]

• Class 2: 2 MB/s - 13x
• Class 4: 4 MB/s - 26x
• Class 6: 6 MB/s - 40x

SDHC cards will often also advertise a maximum speed (such as 133x or 150x) in addition to this minimum Speed Class Rating. See section Speeds above for a further explanation. One critical difference between the Speed Class and the maximum speed ratings is the ability of the host device to query the SD card for the speed class and determine the best location to store data that meets the performance required. "Maximum speed" ratings are quoted by the manufacturers but unverified by any independent evaluation process.

Its just talking about the absolute minimum speed. They usually run a good bit faster, but they all have different read/write speeds so they don't advertise the max read/write speeds.

[wannab20hatch]

Yeah, I just got a 16GB micro SDHC if you want to meet up near me and see if it fits then you can. I got mine off amazon for about 50$.

thanks for the offer. i found out that an HC card will work.nextel is just to cheap to put one in the phone from the factory.

i got a sandisk on ebay with reg SD and usb reader for 55