About File System
About UHS
About OTG
Warranty/ Returns
Previous Page
 
 
   
 

> >

About UHS

Capacity (SD/SDHC/SDXC)

There are three 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.

 


Card form factor


SD : 32 x 24 x 2.1 mm, Approx 2g.

 



mini SD : 20 x 21.5 x 1.4 mm, Approx 1g.

 



micro SD : 11 x 15 x 1.0 mm, Approx 0.5g.


 

What is UHS ?

UHS stands for 〝Ultra High Speed〞 and refers to the new technology that enables higher bus interface speeds on Secure Digital High Capacity (SDHC) and Secure Digital Extended Capacity (SDXC) cards.

center


Speed Class and UHS Speed Class* symbols indicate minimum writing performance to ensure smooth writing of streaming content such as video shooting. This is important mainly for camcorders, video recorders and other devices with video recording capabilities.

Speed Class designates minimum writing performance to record video. The Speed Classes defined by the SD Association are Class 2, 4, 6 and 10.

UHS Speed Class is designed for UHS** devices only and designates minimum writing performance to record video on UHS products.

* (Speed Class and the UHS Speed Class are two different ratings.)
**UHS (Ultra High Speed), the fastest performance category available today, defines bus-interface speeds up to 312 Megabytes per second for greater device performance. It is available on SDXC and SDHC memory cards and devices.

  Marks Operable Under Applications Speed
Speed Class High Speed Bus I/F Full HD video recording
HD still consecutive recording
≥10 MB/s
Normal Bus I/F HD ~ Full HD video recording ≥6 MB/s; ≥4 MB/s
SD video recording ≥2 MB/s
UHS Speed Class UHS-I Bus I/F Full higher potential of recording real-time broadcasts and capturing large-size HD videos

≥10 MB/s
 


 


Back

   
 
 

USB3.0 Wd
Universal Serial Bus Revision 3.0 Specification (.zip file format, size 4.62 MB)YɴѤF@ǧ޳NWӸ`HUFUSB3.0һݥHγ]piPUSB3.0ۮe~CUSB3.0WdOzLEngineering Change Notices (ECNs)hקCbYɤ]tUC
1. 2008~1112ҵoUSB3.0W
2. ĥUSB3.0̷s޳Nw(adopter agreement)
3. 2009~44XLink Command LDN Engineering Change Notice̷s
4. 2009~44oUSB3.0 Standard-B and Standard-B Crosstalk Engineering Change Notice.
5. Reset Propagation Engineering Change Notice as of May 8, 2009
6. Reset Propagation Figure
7. 09~Ĥ@u(2009~515)oUSB3.0ɻ~(Errata)
8. 2010~323oClarification on the Chamfer on USB 3.0 Micro Connectors ECN as
9. 2010~323oUSB3.0Ls̤jަƩwq(Maximum Unmating Force Value Definition to USB 3.0 Micro Connectors ECN)
10. 2010~69oState Machinesu{קqC
11. 2010~69oĪISOзǥHPINGsu{קqC
12. 2010~69osOlp(Contact Plating Thickness)u{קqC
13. 2010~69oStandard-B Connector Near End Crosstalk Engineering Change Notice
14. 2010~69USB3.0ɻ~(Errata)

USB3.0ե֮ѰѦҤWi󦹳Bhttp://www.usb.org/developers/whitepapers/

kߧKdn
Wdbk߮e\USܨOBzHηtCbL󭭨pUALIvOҡA礣OҾP\iAHΤOҹSwتAʡCҥHOҩTܧ_{C

ĥUSB3.0s޳Nw
USB 3.0 Adopters Agreement (.pdf file format, size 32k)iѦɮפ
ZñݡĥUSB3.0s޳Nw\ñqۮeʲ~ɦfBK{vQwCUSB3.0s޳Nwϩ@~P⦳USB3.0ۮeʲ~ݦġCԲӽаѾ\ĥUSB3.0 ޳NwC
qcӫ~pU
1. USB3.0 Flash Driver
2. USB3.0 2.5 Portal HDD
3. USB3.0 Slime Driver
4. USB3.0 Card Reader
5. USB3.0 HUB
6. USB3.0 1.8 Micro Driver
7. USB3.0 H
8. USB3.0 XRd
9. USB3.0 yH
10. USB3.0 UlyH
11. USB3.0 j{yH
12. USB3.0 yH
13. USB3.0 BBQyH
14. USB3.0 gyH