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Old Jul 31, 2002, 12:19 AM   #1
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Default USB enabled CF card vs non-enabled USB

What is the difference between USB enabled vs non-enabled? I recentlly purchased CF cards that are enabled and hope they will work with the Nikon 5700. Please shed some light on this topic. Thanks!
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Old Jul 31, 2002, 12:36 AM   #2
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usb enabled cards were a lexar media attempt to extend the cf standard. by building in part of the usb controller into the cf card and the other part into the reader/writer dongle. this attempted to add another extension to the cf+ standard. it was met with little fanfare due to the rather fast proliferation of small portable reader/writers arriving on the scene. any card with the cf or cf+ logo will work with your camera. the both comply with the standard the + is just a littl e extra fluff if you got the reader packed with it that cf+ reader won't work with non cf+ cards. on the other hand if you have a regular cf reader/writer all cf and cf+ cards will work.

corrected for cf+ info error


[Edited on 7-31-2002 by sjms]
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Old Jul 31, 2002, 6:23 AM   #3
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Has any one ever hear of marketing gimmick?

USB enabled just means a slighly faster (than standard flash) that some vendor 'sell' to the public to differentiate them from the pack. ALL USB processings are handle in the PC end and a faster flash will lower the CPU bandwidth by making the PC software driver access the card faster (ie a x24 is more USB enabled than a x4). There's nothing remotely USB(serial) that's one can add to an ATA(parallel) ie PC hardisk standard, that CF card is based on.

http://www.stevesforums.com/forum/vi...d.php?tid=1178

CF+ adds extension for microdrive, modem, BlueTooth, now and future enabling technologies, etc...(ie defined internal CF's registers) to the original CF specs and IS now THE STANDARD. It's also backward compatible with all older CF cards where the newer extension registers are a don't care !!!

http://www.compactflash.org/

[Edited on 7-31-2002 by NHL]

The USB interface that got mentioned is for a CF to USB adapter (ie like a PCMCIA adapter but smaller form factor), but no one make 1 since it's already come with most cameras... Now a CF modem, that's more saleable!

[Edited on 7-31-2002 by NHL]
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Old Jul 31, 2002, 8:49 AM   #4
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http://www.lexarmedia.com/digfilm/index.html
left side click on (technology)

yes it is a marketing gimmick. just a little one though.



[Edited on 7-31-2002 by sjms]
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