Question 1

The picture for this product shows a write speed of 90MB/s but your description shows only 50MB/s. Which is correct?

Accepted Answer

Atto bench32 tested to 87 MB/s read and 64 MB/s write from 64k to 8192k transfer size.  Below that, it recedes incrementally down to 1.3K write and 162 bytes read at .5k transfer size.  This is perfectly normal BTW.  All flash memory transfer rates start their fastest transfers at or above 32K transfer size.

Question 2

What are the physical dimensions of this card? Can I use it in my chromebook (acer c720)?  The SD card slot in this laptop is much bigger than the card that goes in my DSLR, I'm not seeing a clear description of sizes of SD cards.  Thanks in advance!

Accepted Answer

I did not take the measurement. Did you try to fit your DSLR SD card into your acer? I use the PNY SD card in DSLR. When I need to transfer picture to computer, I usually simply plug the SD card into computers or laptops without any problem. I own many different brand of computer. I did not know there are different pysically dimention between SD cards. There should be a standard in terms of the physical size of a SD card.

Question 3

will this work with Samsung S4? Thanks,

Jeff

Accepted Answer

If you are talking about the Samsung Galaxy S4 phone, I don't think so.

I believe they use microSD cards and not the full size SD card, which the PNY card is.

I have a Samsung Galaxy S3 phone and that's what it uses. I put in a 64GB microSD card in it (I used a Toshiba 64 GB microSD card which NewEgg had on sale a while ago for about $36).

My son has a Galaxy S4 phone and he used a 64 GB microSD card in his too.

Check inside the phone or the Samsung website to be sure.

Question 4

I am having trouble formatting the card, when I do it tell me the card is full....but it's brand new???  I tried several times to format the card and get the same results....what's your advice?  I have a Nikon D60.  Thank you

Accepted Answer

Hi Susan, are you sure you don't have the card in the "locked" mode?  This is with the switch on the card being down, it should be up to use it.  You have a nice camera and I have a Canon EOS T5i.  Sometimes on mine it ask if I want to "low level" format it.  That is what I did the first time I used it.  If you had a card reader in your computer you could see if there is something on it.  Make sure the card itself is unlocked.  Hope this helps.

Brand	PNY
Series	Elite Performance
Model	P-SDX64U1H-GE
Type	Secure Digital Extended Capacity (SDXC)

Capacity	64GB
Speed Class Rating	UHS-I / Class 10
Read Speed	Up to 90MB/s
Write Speed	Up to 60MB/s

PNY Elite Performance 64GB Secure Digital Extended Capacity (SDXC) Flash Card Model P-SDX64U1H-GE (EOL please see 20-178-822)

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Item#: N82E16820178666