PNY Optima 16 GB SDHC Class 4 Flash Memory Card P-SDHC16G4-EF

SDHC CARDS ARE NOT COMPATIBLE WITH SD DEVICES. YOU MUST HAVE A DEVICE THAT SUPPORTS SDHC TO USE SDHC CARDS. SD CARDS ARE NOT THE SAME AS SDHC CARDS.

Numerous incorrect ratings are faulting SDHC cards for not functioning properly. It is very apparent that the buyers are not selecting the correct product for their devices. This problem includes the SD card reader devices - users complain they can access the SDHC cards while the cards are in their device but the card ceases to function in their PC reader.

I fault the Sandisk consortium that agrees on design and standards for SD cards. When the SDHC card was developed the consortium designed it with an identical physical appearance (minus the HC logo) to the standard SD cards - knowing full well that the tech is not reverse compatible. I also fault users for not paying closer attention to their purchases. Most SDHC outer packaging I've seen notes that SDHC cards are not compatible with straight SD devices -... Read more

I have a love/hate relationship with PNY. I've always been enamored with their prices, going back to the days of the GeForce4600 Graphics cards (they were one of the first vendors on the shelves). But they must cut some corners as far as QA is concerned. The plastic housing on all three of these 8GB cards have issues when inserting/ejecting from my Canon HF10, PS3 and Wii. The size of the card is slightly larger than the receptacle. I have the same problem with a Transcend SDHC 16GB card. Odds are, both PNY and Transcend purchase from the same OEM.

I have an 8GB SDHC card from SanDisk. I've never had physical size issues with that card.

I have no complaints as far as speed is concerned. Even though the card is branded as a Class 4 card, the HF10 rates it as a Class 6 and sustained transfer rates are in the 12 - 15MB/s range.

I can't speak to reliability. So far, I haven't had any issues with data retention, but then, I don't use these for long term... Read more

This SD card is for devices which are capable of using the HC standard which greatly increases the speed of read and write operations. If you don' know for sure that your device (camera, pda, etc.) uses that newer standard instead of the older SD card standard, hold off buying it until you know for sure.

That said, it has worked perfectly in my new Panasonic DMC-FX50 digital camera. Four gigabytes is a LOT of storage to have on a tiny card for your camera or other device. It allows me to shoot nearly an hour of VGA quality video from my camera or shoot over one thousand 10 megapixel photographs.

Since we feel we can never have enough storage space for our digital memories, that's fine with me. At this very low price, getting this card from a major manufacturer is a tremendous bargain.

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