SD Memory Card Choices with SD/SDA Logos - SD Association

SD Memory Card Choices with SD/SDA Logos - SD Association
SD Memory Card Choices with SD/SDA Logos
Consumers
About SD Memory Card Choices
SD, SDHC, SDXC and SDUC Card Capacity Choices
Bus Interface Speed Standards for Large Size Data Transfer
Speed Class Standards for Video Recording
Application Performance Class for Running Smartphone Apps
Low Voltage Signaling
Copyright Protection for Digital Data (CPRM)
SD Express / UHS-II Verification Program (SVP) Verified Product
#choosemicroSD
Usage Tip Videos
FAQ
Consumers
Consumers
About SD Memory Card Choices
SD, SDHC, SDXC and SDUC Card Capacity Choices
Bus Interface Speed Standards for Large Size Data Transfer
Speed Class Standards for Video Recording
Application Performance Class for Running Smartphone Apps
Low Voltage Signaling
Copyright Protection for Digital Data (CPRM)
SD Express / UHS-II Verification Program (SVP) Verified Product
#choosemicroSD
Usage Tip Videos
FAQ
SD Card has backward compatibility between card and host devices.
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UHS-I
UHS-II
UHS-III
Good for burst shooting in large size photo, faster data transfer in combination with UHS host devices.
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Long Version
Short Version
SD Express and microSD Express, adding the popular PCI Express® and NVMe™ interfaces to the legacy SD interface.
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Speed Class Standards for Video Recording
SD Express Speed Class
Video Speed Class
UHS Speed Class
Speed Class
All speed class types assures minimum sequential card access performance under a given conditions. Mainly applicable for video recording but not only.
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App Performance Class for Running Smartphone Apps
Application Performance Class A1
Application Performance Class A2
The App Performance Classes assure minimum random and sequential performance speeds to meet both run and store execution time requirements under given conditions.
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