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PCOtherMiscResource

PCISD Card Standard

SD Card FormSD Card Capacity / Speed

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Content

SD Standard
 SD Standard Capacity
 SD Bus Speed
 SD Write Speed Class Type
 Source and Reference

SD Standard

SD standard is a portable storage standard from www.sdcard.org.

SD Standard Capacity

 
 SDSDHCSDXCSDUC
Capacity, C2GB≥C2GB≤C≤32GB32GB≤C≤2TB2TB≤C≤128TB
File SystemFAT 12, 16FAT 32exFATexFAT
Speed ClassDSC2, C4, C6
HSC2, C4, C6, C10, V6, V10
UHS-IN/AC2, C4, C6, C10, U1, U3, V6, V10, V30
UHS-IIN/AC4, C6, C10, U1, U3, V6, V10, V30, V60, V90
UHS-IIIN/AC4, C6, C10, U1, U3, V6, V10, V30, V60, V90

SD Bus Speed

Bus InterfaceCard TypeBus MarkBus SpeedSpec Version
Default SpeedSD, SDHC, SDXC, SDUCDS12.5MB/s1.01
High SpeedSD, SDHC, SDXC, SDUCHS25MB/s1.10
UHS-ISDHC, SDXC, SDUCSDHC I, SDXC I, SDUC I50MB/s (SDR50, DDR50)
104MB/s (SDR104)
3.01
UHS-IISDHC, SDXC, SDUCSDHC II, SDXC II, SDUC II156MB/s Full Duplex
312MB/s Half Duplex
4.00
UHS-IIISDHC, SDXC, SDUCSDHC III, SDXC III, SDUC III312MB/s Full Duplex
624MB/s Full Duplex
6.00
SD ExpressSDHC, SDXC, SDUCSDHC I Express, SDXC I Express, SDUC I Express985MB/s PCIe Gen.3 × 1Lane7.00
1970MB/s PCIe Gen.4 × 1 Lane PCIe Gen.3 × 2 Lane8.00
3940MB/s PCIe Gen.4 × 2 Lane

SD Write Speed Class Type

Minimum Sequential Write SpeedSpeed Class 
Speed ClassUHS Speed ClassVideo Speed Class
90MB/sec  V908K Video   
60MB/sec  V604K Video  
30MB/sec U3V30 Full HD / HD Video 
10MB/secC10U1V10Standard Video
6MB/secC6  V6  
4MB/secC4     
2MB/secC2      
 

Source and Reference


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ID: 201001602 Last Updated: 16/10/2020 Revision: 0


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