Capacity (SD/SDHC/SDXC/SDUC) - SD Association

Capacity (SD/SDHC/SDXC/SDUC) - SD Association
Capacity (SD/SDHC/SDXC/SDUC)
Developers
SD Standard Overview
SD Family
Capacity (SD/SDHC/SDXC/SDUC)
Bus Speed (Default Speed/High Speed/UHS/SD Express)
SD Express Implementation Overview - In short videos and articles
SD Express Member Products
Boot and Extended Security Features (RPMB and TCG)
Boot (secured and fast)
TCG
RPMB
Speed Class
Application  Performance Class
Low Voltage Signaling
Content Protection
Host Controllers
SDIO/iSDIO
Wireless LAN SD
TransferJet SD
ASSD
smartSD
Embedded SD
Application Formats
SD-Audio
SD-Video
SD-Binding
SD-SD
SD-SD eBook
SD Express / UHS-II Verification Program (SVP) Verified Product
How to Start Using SD Standards in Your Product
Use and Licensing
Developers
Developers
SD Standard Overview
SD Family
Capacity (SD/SDHC/SDXC/SDUC)
Bus Speed (Default Speed/High Speed/UHS/SD Express)
SD Express Implementation Overview - In short videos and articles
SD Express Member Products
Boot and Extended Security Features (RPMB and TCG)
Boot (secured and fast)
TCG
RPMB
Speed Class
Application  Performance Class
Low Voltage Signaling
Content Protection
Host Controllers
SDIO/iSDIO
Wireless LAN SD
TransferJet SD
ASSD
smartSD
Embedded SD
Application Formats
SD-Audio
SD-Video
SD-Binding
SD-SD
SD-SD eBook
SD Express / UHS-II Verification Program (SVP) Verified Product
How to Start Using SD Standards in Your Product
Use and Licensing
There are four standards for capacity:
SD standard – Up to 2GB SD memory card using FAT 12 and 16 file systems
SDHC standard – over 2GB-32GB SDHC memory card using FAT32 file system
SDXC standard – over 32GB-2TB SDXC memory card using exFAT file system
SDUC standard – over 2TB-128TB SDUC memory card using exFAT file system
SD Standard
SDHC Standard
SDXC Standard
SDUC Standard
Capacity
up to 2GB
more than 2GBup to 32GB
more than 32GBup to 2TB
more than 2TBup to 128TB
File System
FAT 12, 16
FAT 32
exFAT
exFAT
SD Logo
Form Factor Size
SD
32 x 24 x 2.1 mm
microSD
11 x 15 x 1.0 mm
Speed Classes
Normal
Speed
mode
C2, C4, C6
High
Speed
mode
C2, C4, C6, C10,V6, V10
UHS-I
mode
—
C2, C4, C6, C10U1, U3V6, V10, V30
UHS-II
& III mode
—
C4, C6, C10U1, U3V6, V10, V30, V60, V90
SD Express mode
—
E150, E300, E450, E600