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AussieTrev · 05-07-2012, 03:05 AM

Just a question. I have been using the 32gb Lexmark professional class 10 cards but these seem to now being not offered, instead it is listed as class 10 UHS-I cards. Anyone know if these work in the K5 and is the speed about the same as a class 10 card? I have the 1.13 firmware.

bwDraco · 05-07-2012, 05:20 AM

These cards are bound to non-UHS speeds at about 20 MB/s. The K-5 will not operate an SD card at UHS-I speeds as it lacks support for the 4-bit transfer mode.

--DragonLord

RonHendriks1966 · 05-07-2012, 06:31 AM

So they do work in your K-5!

Bestzoom · 05-07-2012, 07:14 AM

I wonder if the download speed is faster than SDHC card?

obscura · 05-07-2012, 07:26 AM

they work, but not at uhs mode.
this means you cant expect them to utilize the 60(400x) or 90(600x)mb/s speed...
they will fallback to 20-30 mb/s which, for the k-5, is more than enough.
i personaly use a sandisk extreme uhs-1 45mb/s it works, and its very fast, havent seen any difference to the extreme III 30mb/s card.

RonHendriks1966 · 05-07-2012, 07:41 AM

Originally posted by Bestzoom

I wonder if the download speed is faster than SDHC card?

You mean at home with your PC? Yes, but only if you have USB 3.0 port and a new USB 3.0 cardreader.

AussieTrev · 05-07-2012, 06:53 PM

Thanks for the feed back. It's just that B&H has the twin pack 32GB cards in UHS-I at a good price, but no decent class 10. Didn't want to drop the cash and find I had 2 32GB cards that only worked in the K-01.

SuperK5 · 05-07-2012, 07:43 PM

Is this what you are talking about? I read that if the card does not detect a UHS-1 interface it will automatically revert to the Class 10 standard interface. To me it looks like most of the new class 10 Sandisk cards have this new UHS-1/Class 10 dual personality. I have used both the Sandisk Extreme and Extreme Pro UHS-1/Class 10 SDHC cards in the K-5 and they both work fine. The Extreme Pro being just a smidgen faster because of its internal electronics.

SanDisk EXTRME SDHC CLS 10 (45MB/S) 32GB -2 PK SDSDX2-032G-X46

Good Site For Basic SD Card Info.
https://www.sdcard.org/developers/overview/speed_class/

AussieTrev · 05-19-2012, 10:06 PM

Got my cards and they work in everything I need them to work in even my VIO POV HD video. Thanks for the info.

05-07-2012, 03:05 AM	#1
AussieTrev Veteran Member Join Date: Jul 2010 Location: Queensland Photos: Gallery \| Albums Posts: 3,590	K5 & SDHC UHS-I Cards Just a question. I have been using the 32gb Lexmark professional class 10 cards but these seem to now being not offered, instead it is listed as class 10 UHS-I cards. Anyone know if these work in the K5 and is the speed about the same as a class 10 card? I have the 1.13 firmware.

05-07-2012, 07:43 PM	#8
SuperK5 Inactive Account Join Date: Feb 2012 Posts: 92	Is this what you are talking about? I read that if the card does not detect a UHS-1 interface it will automatically revert to the Class 10 standard interface. To me it looks like most of the new class 10 Sandisk cards have this new UHS-1/Class 10 dual personality. I have used both the Sandisk Extreme and Extreme Pro UHS-1/Class 10 SDHC cards in the K-5 and they both work fine. The Extreme Pro being just a smidgen faster because of its internal electronics. SanDisk EXTRME SDHC CLS 10 (45MB/S) 32GB -2 PK SDSDX2-032G-X46 Good Site For Basic SD Card Info. https://www.sdcard.org/developers/overview/speed_class/ Last edited by SuperK5; 05-07-2012 at 08:21 PM.

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05-07-2012, 05:20 AM	#2
bwDraco Veteran Member Join Date: Jul 2010 Location: New York Photos: Albums Posts: 1,071	These cards are bound to non-UHS speeds at about 20 MB/s. The K-5 will not operate an SD card at UHS-I speeds as it lacks support for the 4-bit transfer mode. --DragonLord

05-07-2012, 06:31 AM	#3
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	So they do work in your K-5!

05-07-2012, 07:14 AM	#4
Bestzoom Senior Member Join Date: Aug 2011 Location: Sydney Photos: Albums Posts: 232	I wonder if the download speed is faster than SDHC card?

05-07-2012, 07:26 AM	#5
obscura Senior Member Join Date: Apr 2012 Posts: 127	they work, but not at uhs mode. this means you cant expect them to utilize the 60(400x) or 90(600x)mb/s speed... they will fallback to 20-30 mb/s which, for the k-5, is more than enough. i personaly use a sandisk extreme uhs-1 45mb/s it works, and its very fast, havent seen any difference to the extreme III 30mb/s card.

05-07-2012, 07:41 AM	#6
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	Originally posted by Bestzoom I wonder if the download speed is faster than SDHC card? You mean at home with your PC? Yes, but only if you have USB 3.0 port and a new USB 3.0 cardreader.

05-07-2012, 06:53 PM	#7
AussieTrev Veteran Member Join Date: Jul 2010 Location: Queensland Photos: Gallery \| Albums Posts: 3,590 Original Poster	Thanks for the feed back. It's just that B&H has the twin pack 32GB cards in UHS-I at a good price, but no decent class 10. Didn't want to drop the cash and find I had 2 32GB cards that only worked in the K-01.

05-19-2012, 10:06 PM	#9
AussieTrev Veteran Member Join Date: Jul 2010 Location: Queensland Photos: Gallery \| Albums Posts: 3,590 Original Poster	Got my cards and they work in everything I need them to work in even my VIO POV HD video. Thanks for the info.

K5 & SDHC UHS-I Cards

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