<p>I have 2 of those cards, one is UDMA 7 and the other one only states UDMA (I guess that's UDMA6). Anyway, the UDMA card is superfast in my cheap internal Eminent USB 3.0 card reader and reaches easily 90 mb/s. the other card (UDMA 7) is horribly slow and thumbnails pop up very slow if i open the folder with photos in it. I already received a replacement card and the new one is slightly quicker but still very slow.<br>
The weird thing is: both cards work perfect in a USB 2.0 cardreader, but when it is USB 3.0 the UDMA 7 card is terrbly slow (for reading)<br>
i looked up the serial number of both cards and the fast card's number is:<br>
<strong>457580 1349 8332AC 0U6RR</strong><br>
while the new replacement card's number one is:<br>
<strong>A23449 0692 6312AC 0U7RR</strong><br>
i remember that the serial number of the card that was replaced also started with an '<strong>A</strong>'. Does your's also start with an A? You should check your cards performance with a USB 2.0 device.<br>
BTW, i also never use LR to copy photos to my HDDs. I first copy and then import in LR.<br>
32G CF card performance question: slow importing?
in Nikon
Posted
<p>I have 2 of those cards, one is UDMA 7 and the other one only states UDMA (I guess that's UDMA6). Anyway, the UDMA card is superfast in my cheap internal Eminent USB 3.0 card reader and reaches easily 90 mb/s. the other card (UDMA 7) is horribly slow and thumbnails pop up very slow if i open the folder with photos in it. I already received a replacement card and the new one is slightly quicker but still very slow.<br>
The weird thing is: both cards work perfect in a USB 2.0 cardreader, but when it is USB 3.0 the UDMA 7 card is terrbly slow (for reading)<br>
i looked up the serial number of both cards and the fast card's number is:<br>
<strong>457580 1349 8332AC 0U6RR</strong><br>
while the new replacement card's number one is:<br>
<strong>A23449 0692 6312AC 0U7RR</strong><br>
i remember that the serial number of the card that was replaced also started with an '<strong>A</strong>'. Does your's also start with an A? You should check your cards performance with a USB 2.0 device.<br>
BTW, i also never use LR to copy photos to my HDDs. I first copy and then import in LR.<br>
cheers, Udo</p>