Question 1

can I use this to transfer data from an MMC to a Micro SD card?

Accepted Answer

According to the product specs, you should be able to, but I don't use any MMC cards. I use the old school thumb drives, SD cards, and microSD cards. If they made the device to accept an MMC card you would think you would be able to read and write to it through the IOgear adapter.

Question 2

what are the dimensions of the usb in length and width?

Accepted Answer

2 3/16th in long. 5/8th in wide. 1/4 in tall. But note that the slots are on the side, not the end, so you'll need extra width when it's in use. A standard SD card adds about 3/4 in when it's plugged in.

Question 3

What is the maximum speed supported?  (32mg, 64mb etc) ?

Accepted Answer

I don't know about the true maximum, but testing it now on my desktop l, I get a max of 5.20mb/sec with an average of around 4.80mb/sec. This was writing to an 8gb SD card. This held true for a variety of file types: pics, video, games and text files all had about the same speed.

At this speed, it takes about 4 min per GB. If you need to transfer upwards of 1Tb at once, or 3GB several times per day, you might want to get a different product, but this does well for a convenience tool.

Question 4

Is this xd card compatible ?

Accepted Answer

Hey wait!!  When I replied I did not realize I was submitting this to a different product. I thought I was responding to a question for a SABRENT CRW-UINB 68-in-1 USB 2.0 Internal Card Reader w/ USB 2.0 Port supports SDHC/VISTA...Sorry, I could not find the place where you delete the response so I posted this response...I'm not sure if the IOgear GFR204SD 10in1 works with xD... :/

Question 5

What types of memory cards does this card reader support?

Accepted Answer

This card reader supports memory card types including SD, SDHC, SDXC, MicroSD, MicroSDHC, MMC II, RS MMC, Ultra II SD, Extreme SD, and Extreme III SD.

Question 6

Is an external power source required for this card reader?

Accepted Answer

No, an external power source is not required for this card reader.

Question 7

How fast is the data transfer rate on this card reader?

Accepted Answer

The data transfer rate on this card reader is up to 480 Mbps.

Question 8

Can I use this card reader with my Mac system?

Accepted Answer

Yes, this card reader supports Mac OS9.X and up.

Question 9

Will an older SD card reader be able to read SDXC cards, or do I have to buy this type of reader?

Accepted Answer

I would suggest upgrading to this card, simply because of the fact it is fairly cheap and all contacts on the card are new.  No future worries about card compatibility (unless there is a format change) and no worrying about not having the right adapter.  As for your question...only if it is SDXC compatible, which some of the older ones aren't.  So it depends on what you have.

Brand	IOGEAR
Series	IOGEAR SD/MicroSD/MMC Card Reader/Writer
Model	GFR204SD

Type	10-in-1
Slots	2
Installation Type	External
Color	Black
Interface	USB 2.0
Compatibility	SD SDHC SDXC MicroSD MicroSDHC MMC II RS MMC Ultra II SD Extreme SD Extreme III SD
Support - Compact Flash	No
Support - Memory Stick	No
Support - MMC	Yes
Support - SD	Yes
Support - SmartMedia	No
Support - xD	No
Dimensions	2.38" x 0.31" x 0.63"

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IOGEAR GFR204SD 10-in-1 USB 2.0 SD/ MicroSD/ MMC Card Reader/ Writer (Green/ Gray)

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Item#: 9SIC2JJKR97644