price drop: Sandisk 64GB Ultra SDXC UHS-I Card 30MB/s (Class 10) $48 free shipping!!!

Buy Dig has 64GB SanDisk Ultra Class 10 (30MB/s) SDXC Flash Memory Card (SDSDU-064G-A11) on sale for $47.95. Shipping is free. Thanks purificada

great deal It’s even less than the Previous Front Page Deal from 4 days ago

What is the difference between this Ultra card, and other Extreme (not Extreme Pro) 30MB/s card from SanDisk?

It's really confusing how SanDisk label similarly named card with different speed rating...(Ultra with 20MB/s, and this 30MB/s, Extreme with 30MB/s and 45MB/s, Extreme Pro with 45MB/s and 90MB/s)

Quote from ppysr : What is the difference between this Ultra card, and other Extreme (not Extreme Pro) 30MB/s card from SanDisk? It's really confusing how SanDisk label similarly named card with different speed rating...(Ultra with 20MB/s, and this 30MB/s, Extreme with 30MB/s and 45MB/s, Extreme Pro with 45MB/s and 90MB/s)

Its so messed up. http://slickdeals.net/f/4301866-S...e-Shipping

http://forums.dpreview.com/forums...angemode=1

Here is an excerpt from a chat with SanDisk support on their website:
Me: I am shopping for a SDHC Extreme memory card on B&H's website and need some card comparison info. Is there any difference between these two class 10 cards? SDSDX3-016G-A31 and the SDSDRX3-016G-A21
SanDisk: The SDSDX3-016G-A31 is the Extreme 30MB/s Class 10 card. The SDSDRX3-016G-A21 is the Extreme HD VIdeo card. Initially, this card is 20MB/s and Class 6, but with the UHS technology used on the card, it is now 30MB/s and Class 10.
SanDisk: UHS means Ultra High Speed. Note, in non-UHS host, the card will perform to the maximum limit of the non-UHS host. The SanDisk UHS-I card will have performance of up to 30MB/s in UHS based host devices and up to 20MB/s in non-UHS based host devices. Additionally, UHS-I cards will have Speed Class U1 for UHS host devices and Class 10 for older devices with SDHC interconnect.
Me: Just to be clear, the SDSDX3-016G-A31 card will be 30mb/s in any device that can use that speed regardless of UHS ability? And then in UHS devices it won't see any speed improvement.
SanDisk: The SDSDX3-016G-A31 will have 30MB/s speed rating regardless if the host device supports UHS or not. The SDSDRX3-016G-A21 will have the 30MB/s speed rating on a device that supports UHS and 20MB/s on a non-UHS device.
Me: Okay, sounds like the SDSDX3-016G-A31 is a better card?
SanDisk: Yes. But if your camera supports UHS then both cards will have the same performance.
That about sums it up!

A bit more about this:
SanDisk Extreme 30 MB/s Edition SDHC cards support transfer rates of up to 20 MB/sec in HS mode, and up to 30 MB/sec in a SanDisk-proprietary mode that is supported only in a few Nikon cameras (D90) and a few SanDisk card readers (ImageMate USB 2.0). They are Speed Class 10. As best I can tell, these cards are discontinued, and most vendors who still list this product are substituting with a SanDisk Extreme HD Video 30 MB/s card, not being aware of the difference.
SanDisk Extreme HD Video SDHC cards with a 30 MB/s designation support transfer rates of up to 20 MB/sec in HS mode, and up to 30 MB/sec in UHS mode. They have an "I" printed on them, which means UHS-I. They are Speed Class 10, and probably UHS Speed Class 1. (though I don't see any UHS speed class indicated on the label, the SD Card Association indicates that all UHS cards at this time support UHS Speed Class 1)
SanDisk Extreme HD Video SDHC cards with a 20 MB/s designation support transfer rates of up to 20 MB/sec in HS mode, and don't support UHS mode. They are Speed Class 6.
Sandisk Extreme Pro SDHC cards with a 45 MB/sec designation support transfer rates of up to 20 MB/sec in HS mode, and up to 45 MB/sec in UHS mode. They are Speed Class 10 and UHS Speed Class 1.
UHS mode is quite new; very few cameras or card readers support it. I don't know how the performance of these cards compares in HS mode. There are a lot of counterfeit card out there. I recommend buying from a SanDisk-authorized reseller. (use the reseller list on the SanDisk web site)

Quote from ppysr : What is the difference between this Ultra card, and other Extreme (not Extreme Pro) 30MB/s card from SanDisk? It's really confusing how SanDisk label similarly named card with different speed rating...(Ultra with 20MB/s, and this 30MB/s, Extreme with 30MB/s and 45MB/s, Extreme Pro with 45MB/s and 90MB/s)

its actually really simple

The Old Ultra was 20MB/s link [sandisk.com]
This New Ultra is 30MB/s link [sandisk.com]

they bumped up the Read Speed on all their cards on the ultra from 20mbs to 30mbs, and same on the extreme and extreme pro

If they are making it the same or similar then why not start consolidating the lines...
Because my understand was there is regular... basic blue, ultra, extreme, Ex Pro... But if ultra is class 10 and same speeds as extreme... then why not call it extreme

Since this deal thread has turned into a Tech Q&A thread anyway, I'll ask the question:

My Canon T3i shows up as a device when connected via USB, not as drive if I inserted a flash drive, or the SD card into a USB reader. Therefore, when I transfer files from the camera, I only get copying files xx minutes remaining ( which is very inaccurate ).

My question is: Are there any free tools / utilities that will measure the real transfer rate from my camera via USB to my computer?

Some digging lead me to "USB Host Controller Transfer Speed Test (Manual)" at Microsoft - http://msdn.microsoft.com/en-us/l...S.85).aspx

It sounds promissing, but I have to download a several gig Windows Logo Test Kit. There must be something simpler.

I MANUALLY timed my transfer with a stop watch, and got about 18MBs, but as a technogeek I want something more accurate.

Pretty soon this troll named (I forget) will show up here and warn everyone that this card his too slow. Ignore him/her. His/her camera couldn't keep up.

Quote from JoeBonifazi : Since this deal thread has turned into a Tech Q&A thread anyway, I'll ask the question: My Canon T3i shows up as a device when connected via USB, not as drive if I inserted a flash drive, or the SD card into a USB reader. Therefore, when I transfer files from the camera, I only get copying files xx minutes remaining ( which is very inaccurate ). My question is: Are there any free tools / utilities that will measure the real transfer rate from my camera via USB to my computer? Some digging lead me to "USB Host Controller Transfer Speed Test (Manual)" at Microsoft - http://msdn.microsoft.com/en-us/l...S.85).aspx It sounds promissing, but I have to download a several gig Windows Logo Test Kit. There must be something simpler. I MANUALLY timed my transfer with a stop watch, and got about 18MBs, but as a technogeek I want something more accurate.

ATTO Benchmark does everything you are looking for: http://www.attotech.com/products/..._Benchmark. Only problem is it wont read the card in your camera. You need a card reader. I dont know if its possible to get it to read the card in your camera. I've been trying to find some hotfix. Anyway, hope this helps.

Quote from JoeBonifazi : Since this deal thread has turned into a Tech Q&A thread anyway, I'll ask the question: My Canon T3i shows up as a device when connected via USB, not as drive if I inserted a flash drive, or the SD card into a USB reader. Therefore, when I transfer files from the camera, I only get copying files xx minutes remaining ( which is very inaccurate ). My question is: Are there any free tools / utilities that will measure the real transfer rate from my camera via USB to my computer? Some digging lead me to "USB Host Controller Transfer Speed Test (Manual)" at Microsoft - http://msdn.microsoft.com/en-us/l...S.85).aspx It sounds promissing, but I have to download a several gig Windows Logo Test Kit. There must be something simpler. I MANUALLY timed my transfer with a stop watch, and got about 18MBs, but as a technogeek I want something more accurate.

Not that I know of.. (since it doesn't show up as a regular drive, usually you could see how many MB/s it transfers over, along with the time remaining).

But I guess technically it wouldn't matter since most USB 2.0 card readers top out at around 18-20MB/s, so you're in a good spot.

Are you considering getting this Ultra for your T3i? I wouldn't recommend it, base off writes. I'd recommend it if you don't care about burst. It will have a faster read speed into computer if you use a USB 3.0 card reader (don't even need a USB 3.0 port, but it would be even faster if you did!)

Will this work with a simpler camera (Point and Shoot) Panasonic ZS7 like? Or is it only for really good cameras?

Quote from MSH : If they are making it the same or similar then why not start consolidating the lines... Because my understand was there is regular... basic blue, ultra, extreme, Ex Pro... But if ultra is class 10 and same speeds as extreme... then why not call it extreme

Even though Ultra and Extreme get Class 10 rating (minimum sequential write of 10MB/s), they have a different max write speed. See below:

In a USB 2.0 card reader (maxes out @ ~20MB/s, depending on quality of card reader)
=========== Read |=| Write
Ultra ------ ~20MB/s | ~13MB/s
Extreme - ~20MB/s | ~20MB/s

In a USB 3.0 card reader + USB 3.0 Port:
=========== Read |=| Write
Ultra ------ ~40MB/s | ~13MB/s
Extreme - ~45MB/s | ~43MB/s

Quote from ParticleJG : Will this work with a simpler camera (Point and Shoot) Panasonic ZS7 like? Or is it only for really good cameras?

Should work perfect for your ZS7

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