What is the difference between SD and SDHC and SDXC cards? What is the difference between SD and SDHC and SDXC cards ? SD card, SDHC card, SDXC card difference is the specification is not the same, the SD card maximum support 2GB capacity, SDHC maximum support 32GB capacity, SDXC Maximum support 2TB (2048GB) capacity, support SDXC Card digital device is compatible with support SD card and SDHC card, If the device only supports SDHC cards, then this device will not be able to use SDXC card, but compatible with SD card. The SDXC,SDHC card is not compatible if the device supports only the SD card. For these three kinds of cards, the small series explained in detail, what are their functions and characteristics? SD Card SD is an earlier version and is said to have evolved from MMC. Supports up to 2GB size capacity. SD memory Card is 1999 by Panasonic, Toshiba, SanDisk 3 companies jointly developed small storage media, in the introduction of SD memory card, at the same time set up a safe Storage Digital Card Association (Secure Digital Cards Association; SDA) to develop relevant specifications and to be responsible for the promotion of SD memory card. After years of development, SD card has been the world's highest penetration of electronic products memory card format, for mobile phones, digital cameras (DSC), MP3 music players, personal computers and other electronic products. SDHC Card SDHC is a large-capacity SD card, which is the SD high capacity, which supports a maximum size of 32GB. Sdhc,secure Digital High capacity, large capacity SD, that is, more than 2G SD is called SDHC, because the early SD uses the FAT16 file system, does not support the large capacity, and SDHC upgrade to FAT32, only support more than 2G of large capacity. SDXC Card SDXC (SD eXtended capacity) is the new standard released last 09, supporting a maximum size capacity of 2TB. SDXC is the abbreviation of SD eXtended capacity, is the new standard, in addition to the capacity can be upgraded to a maximum of 2T, mainly can support 300m/s transmission speed, that is, "high-speed SD" card. However, the number of digital cameras supporting SDXC card is not many, mainly the new products introduced this year, and SDXC is not backward compatible, does not support the normal SD and SDHC card slots and card reader. For most digital cameras and DSLR, the high-speed SDHC memory card is fast enough for high-speed continuous shooting and HD video shooting. PostScript: What is the difference between SD and SDHC and SDXC cards ? SD card, SDHC card, SDXC card difference is different, SD card support 2GB capacity, SDHC maximum support 32GB capacity, SDXC maximum support 2TB (2048GB) capacity, and now these card class development faster and more capacity. However, the use of the process should pay attention to backup data, so as not to prevent memory card problems. Related reading:What is CF card? Http://product.pconline.com.cn/itbk/digital/ydcc/1111/2578480.htmlWhat is xd card? Http://product.pconline.com.cn/itbk/digital/ydcc/1110/2566515.htmlWhat is an expansion card Http://product.pconline.com.cn/itbk/digital/ydcc/1107/2484424.html |