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rew
Posts: 435
Joined: Fri Aug 26, 2011 3:25 pm

Re: SDHC? Or just SD?

Mon Apr 23, 2012 6:22 am

At the moment I'm getting 5.5Mb/sec from a high-performance SD card.


mmcblk0          44.00      5632.00         0.00       5632          0
mmcblk0          43.00      5504.00         0.00       5504          0
mmcblk0          44.00      5632.00         0.00       5632          0
mmcblk0          44.00      5632.00         0.00       5632          0


That same card gets 15Mb per second in a $3 USB SD card reader connected to my PC. Also the cheap SD cards get 15Mb per second in that cheap reader, so I'm guessing that the SD card reader can do about 15Mb per second, while the high performance cards can do more.

As SD versus SDHC: SD cards cannot address more than 2G. That's why SDHC was invented. NO card larger than 4G can be SD and not HC. The raspberry pi handles SDHC just fine. I have two 2G cards, they haven't been closer than about 30cm to my 'pi. I've always used 4G or 16G cards.
Check out our raspberry pi addons: https://www.bitwizard.nl/shop/

HealthEnclave
Posts: 1
Joined: Fri Apr 27, 2012 9:47 pm

Re: SDHC? Or just SD?

Fri Apr 27, 2012 10:49 pm

Does anyone know if SDHC card with wifi will work on raspberry pi .. Would help doing away with the ethernet ...

eg: http://www.amazon.com/Eye-Fi-Connect-Wi ... y_e_text_b

pygmy_giant
Posts: 1562
Joined: Sun Mar 04, 2012 12:49 am

Re: SDHC? Or just SD?

Fri Apr 27, 2012 11:28 pm

Silicon Power (no e that was a typo) - and yes really - got Debian on it fine - checks out with H2testw - its no fake (trust me I've bought enough to know)...
Ostendo ignarus addo scientia.

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