Centros Secure Digital Card Reader Model No.4418951 will not read a SanDisk SDHC Card 4GB.

Yes, i t should be unless it is a SDHC Card which it should not be as SDHC cards have minimum 4 GB capacity. For more info:

The older SD (secure digital) cards had a maximum capacity of 2GB. The SDHC (secure digital high capacity) cards can go to 32GB. Devices that support SDHC will say so in their specs and they will also read older SD card. Older devices that use SD cards will NOT use SDHC.

"SDHC (Secure Digital High-Capacity) cards are flash memory cards with a minimum capacity of 4GB (gigabytes). SDHC cards provide removable memory for compatible digital devices including cameras, camcorders, PDAs, MP3 players and more.

Correct!!!! This card reader cannot address cards that are higher then 3gig and cannot read sdhc cards. Most older readers will not be able to read the HC type card, and by older I mean if its 6 months old or more. To read these cards you need to purchase a new card reader. I know, My camera uses 4gig cards and I was unable to access the pics until I bought a new reader..

My guess is that you have an SDHC (Secure Digital High Capacity) card in the camera, but the card reader attached to your computer can read only the older SD cards. SD cards that are 4GB and larger are SDHC types, and should have SDHC prominently displayed on the label. The card reader on the other hand, was probably made before the SDHC type cards were ever made.

You can find a new card reader that support the high capacity cards for under $20 in many places. Unfortunately, the older card readers can not be upgraded to read the newer cards - but the SDHC readers can read the older SD types.

Cards over 2GB are MicroSDHC. Your reader will have to be able to read SDHC in order to read your card. Unfortunately, your reader maybe to old. You probably will need to buy a newer reader capable of reading SDHC cards.

From your description, it sounds like the card is faulty, not the computer or the card reader. If you can't get the card to read or write in any device now, then it's probably dead. Is the card reader you're using an SDHC card reader or just a regular SD card reader?

Hi viveka_sirka,

If you have the 4GB card the most likely problem is your reader is not SDHC compatible. SDHC cards are all SD cards that are 4GB and larger. If your reader is the reason then you must get a new reader to plug into your USB port that will read SDHC cards.

Kingston Tech Support

The ZR200 is able to read a card of maximum of 2 Gbytes !!!

The 4 GB SD card it is a so called SDHC = Secure Digital High Capacity ! Every SD card with more than 2 G Bytes it is a High Capacity and the old hardware will not be able to use these SDHC.

I assume you mean Sandisk Ultra..and the answer is Yes it will work fine.

A good choice card also..

Just beware that some computers will need the SDHC reader.
For example my SDHC cards can be read in XP without the reader but my Vista machines need the reader.

Good luck and happy shooting :-)

When You Insert your SD card into the internal card reader, then the SD card is not recognised by the system and the SD card drive doesn't show there. The problem can be because of driver issue, system issue and device issue.
To fix the problem you need to go at device manager if there is a yelllow sign in SD card controller, the problem is most probably caused by a driver issue. Then you need to update the driver. You can also download the driver for your card reader.
Also, check if your SD Card is broken. You can also check it into different devices port.
If it is detected then you can backup of your data.

If the problem not resolved by any means and you require you SD Card data then I will suggest you read - https://www.stellarinfo.co.in/services/removable-media-recovery.php

You might be running into a problem with the new card being a SDHC (Secure Digital High Capacity) card and not just a SD (Secure Digital) card. I have had similar problems with SDHC cards when I put then in older products that have regular SD slots (Photosmart Printer). The cards will still fit into the slots, however the method as to which they are read and written to is different which causes the problem. So, maybe try updating computer hardware drivers or mp3 firmware from the Sansa website. Also, if you can, exchange the 4gb SDHC for a 4gb SD card, this could be a pain in the ****, but this solution should fix your problem definately. Hope some of this helped.