Quote:
Originally Posted by jersysman
I am new to the Nook Color and to Rooting. I see mentioned a class 6 micro SD card. By that are there different classes of cards? I was just going to get a micro SD card to Root, but should I be asking for a class 6?  |
There are two different specs: SD and SDHC cards. For all practical purposes the SD card are up to 2GB and have no speed classes as such but uses a speed rating such as 50X (X=150KB). There are currently four speed classes for the SDHC cards: 2, 4, 6 and 10. These numbers represent the minimum sustained write speed in megabytes per second.
Notes:
SD/SDHC come in three sizes; standard, mini and micro.
The read speed is always greater than the write speed.
MB and Mb are not the same. In all cases, the upper case "B" are bytes and the lower case "b" are bits (8bits = 1Byte). Video cameras typically specify speed in "mbs" which means you have to divide by 8 and round up to determine the speed class requirement.
Regards - John