Best Card Reader, non-USB, for SD, SDHC & SDXC?

R

rich121

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I am searching for a non-USB 2 powered "all in one" type card reader. Prefferably fitting into a 5.25" slot.

I want faster than USB 2...USB 3 would be great, fire wire, I don't have eSATA, but could get a card I suppose.

USB 2 defeats the purpose...why have the fast card speeds only to have the USB 2 bottleneck?

Thanks


Rick
 
What about firefire? I'm looking for a non-usb way to transfer sdhc cards to my computer too.
 
If you're looking to improve the performance of a single SD/SDHC/SDXC card, remember that only SDXC can take any advantage whatsoever of faster-than-USB speeds. This is because the SD Card Association has limited the maximum read/write speed performance of an SD or an SDHC card to only 20 MB/s when used in a fully SD Card Association standards-compliant reader (and 20 MB/s is well within the capabilities of a USB 2.0 High-Speed interface with its maximum practical bandwidth of 32 MB/s).
 
I Think you will have to wait a while to find one faster then usb2.

I have also seen the SATA adapters, but they are typically not made to hot swap the card.
 
bastage said:
I Think you will have to wait a while to find one faster then usb2.

I have also seen the SATA adapters, but they are typically not made to hot swap the card.
Click to expand...

So far, I found this one...I see it does SDXC for sure, not sure about SD or SDHC. I sent an email, as it looks like they will custom configure...hopefully I don't have to buy a thousand to get one...:eek:



http://www.iointerconnect.com/b53.php



When I try inserting the link into the "insert link" box, it changes the link and it doesn't work...so I could only put the "contact" webpage in. If you look into the Products page, you will find it.


Rick
 
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E4g1e said:
If you're looking to improve the performance of a single SD/SDHC/SDXC card, remember that only SDXC can take any advantage whatsoever of faster-than-USB speeds. This is because the SD Card Association has limited the maximum read/write speed performance of an SD or an SDHC card to only 20 MB/s when used in a fully SD Card Association standards-compliant reader (and 20 MB/s is well within the capabilities of a USB 2.0 High-Speed interface with its maximum practical bandwidth of 32 MB/s).
Click to expand...

The number you quoted is close, but wrong:

SDHC = 12.5 MB/s in regular mode, and 25MB/s in high-speed.

But it matters not, since that is also well-within the capabilities of USB.

Just buy a cheap USB2 reader now, and then ditch it for USB3 a year from now. It will be cheaper and easier than getting any other type of reader.
 
defaultluser said:
The number you quoted is close, but wrong:

SDHC = 12.5 MB/s in regular mode, and 25MB/s in high-speed.

But it matters not, since that is also well-within the capabilities of USB.

Just buy a cheap USB2 reader now, and then ditch it for USB3 a year from now. It will be cheaper and easier than getting any other type of reader.
Click to expand...

Thanks for finding this info. I had assumed that the lack of any 25 MB/s rated SDHC cards on the market are due to SD Card Association standards - but it is in reailty due to the lack of NAND ICs besides the ones used in SanDisk's Extreme SDHC cards which read or write at that speed (or if there were, they are limited to 22 MB/s due to overhead).

And there are hardly any SDXC cards available on the mass market right now simply because they are very expensive (in fact, more expensive than a 90 MB/s CF card of the same capacity).
 
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