PNY Optima 8GB SDHC Class 4 Flash Memory Card P-SDHC8G4-EF
by PNY
List Price:
Our Price: $3.49
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Availability: Usually ships in 1-2 business days
Category: CE
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Digital Photo Product Details
Manufacturer: PNYAudio: English (Original Language)
Model: P-SDHC8G4-EF/S2
Product features:
- Class 4 Performance
- Minimum 4 Mb Per Second Write Performance
- Ideal For Latest Digital Cameras & Camcorders
- Record Video & Images, Download Music & Store Images
- Capacity 8 Gb
- Transcend TS-RDM3R All in 1 USB 2.0 Multi Card Reader (Red)
- SanDisk Ultra 32GB SDHC Card (SDSDRH-032G-A11)
- Transcend 32 GB SDHC Class 6 Flash Memory Card TS32GSDHC6
- Transcend 16 GB SDHC Class 6 Flash Memory Card with Card Reader TS16GSDHC6-S5W
Digital Cameras Photo Reviews of PNY Optima 8GB SDHC Class 4 Flash Memory Card P-SDHC8G4-EF
Customer Review: SDHC cards not compatible with SD
Summary: 5 Stars
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 - different manufacturers just make it more or less prominent on packaging.
Additionally, the primary manner in which SDHC cards are rated, by class, is very misleading. Class (Class 1, Class 2, Class 4, etc) dictates a minimum write speed rather than a range. The SDHC manufacturers tend to omit the actual write speed while advertising the card class - which may be very low or high compared to the indicated class rating. Capacity is the typical consumer focus for many users but there are many interested in actual write-speed performance. This dictates whether or not the card throughput will bottleneck and slow a device - especially important in DSLR cameras and HD cameras where the device will simply slow or stop functioning until the card catches up.
The Class rating system creates unusual situations where cards rated in lower Class can outperform cards in a higher class. Thus the off-brand companies will advertise a 16gb card for a fair margin cheaper than Sandisk or Kingston equivalents. However, the latter (Sandisk & Kingston) products will perform significantly better in use because they both write faster despite similar class ratings. Off-brand SDHC cards are fine so long as the associated device doesn't demand faster performance and the user does not mind suspect quality control.
This PNY product works adequately and can keep up with my Canon 450D/XSi full JPEG burst to about 40 consecutive photos at 1/2000 shutter. RAW format fetches 6-10 consecutive photos on the PNY outpacing my Sandisk Ultra II (Class 2) by about 2-3 photos - expected results. However, the 450D has a limit of 3.5/sec for RAW burst which may now be my limiting factor. I may try the Sandisk Extreme III 30 MB/s at a later date once the price comes down.
Buyers with more demanding devices (such as Canon 50D, 7D, 5D, etc.) may wish to look towards a faster card.
Description of PNY Optima 8GB SDHC Class 4 Flash Memory Card P-SDHC8G4-EF
8 GB Class 4 secure digital high-capacity card ideal for the latest digital cameras and recorders. Please verify that your device such as cellular phone or digital camera supports SDHC cards. SDHC cards are not compatible with standard SD host devices and card readers, and will only work on SDHC host devices. Check with your device manufacturer to see if the device supports SDHC before purchase.Blank Media
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