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| Panasonic 4GB Class 4 High Speed SDHC Card- 10MB/s | 
 enlarge | Brand: Panasonic
Category: CE
List Price: $79.99
Buy New: $19.99
You Save: $60.00 (75%)
New (32) from $19.99
Avg. Customer Rating:  2 reviews
Autographed: No
Memorabilia: No
Batteries Included: No
Memory Type: SIMM
Shipping Weight (lbs): 1
Dimensions (in): 1 x 4 x 8
MPN: RP-SDM04GU1K
Model: SDM04GU1K
UPC: 037988015375
EAN: 0037988015375
ASIN: B000OGVHI4
Availability: Usually ships in 1-2 business days
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| Customer Reviews:
 Very Fast January 14, 2008
4 out of 4 found this review helpful
If you do your research, you'll find that Pansonic is the originator of the SD Flash Card and in any test you can find, any year, you'll see Panasonic consitently outperforms the other competing brands. Most of the 4GB cards coming out these days are Class 6 which should be faster than this card. But pretty much any card that doesn't have a Class designation is because they don't want to advertise it is a Class 2. The X number (like 120X) is usually the maximum read speed and most cards are overrated even at that in my experience. Panasonic is like a car manufacturer that doesn't inflate their horsepower ratings by running the engines on premium fuel. If they say 33X, then they mean AT LEAST 33X * WRITE * Speed. I've compared this card and the 2GB version to many of the other cards including the Sandisk Ultra II card and this card was twice as fast, three times as fast as my older 512MB regular Kingston Card. And this was just shooting photos with my brand new Canon SD870, not using some sort of test software to measure slight differences, I just counted the seconds it took to write the image to the card when I snapped the picture, it was that noticeable. Every review you read about Panasonic cards is always stellar. The previous reviewer here did not actually run any formal tests. It may not do 10MB/sec but neither will most cards designated 80X, 120X, etc. See for yourself when you compare it to some of your other cards. Also, go look at the reviews for the Panasonic Class 2 SD Cards on Amazon - you'll see everyone agrees they are very fast, even for Class 2.
 Class 4 = 4MB/sec December 10, 2007
1 out of 5 found this review helpful
BUYER BEWARE
!!!THIS CARD MAY NOT HAVE 10 MB/SEC TRANSFER RATE AS ADVERTISED!!!
I would be cautious in buying this. The class number on an SDHC card refers to the write speed. (Class 2 = 2 MB/sec, Class 4 = 4 MB/sec, Class 6 = 6 MB/sec)
A write speed of 10 MBs/sec is available in lower capacity SD cards. (6x = .9 MB/sec, 40x = 6 MB/sec, 66x = 10 MB/sec, 133x = 20 MB/sec)
This looks like false advertisement to me
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