I have read a ton of research on google and found that the best option is from amazon.com
I also got very fast&free shipping from amazon for more than 50 usd items.

Transcend 4 GB Class 6 SDHC Flash Memory Card TS4GSDHC6

Sunday, 09. May 2010. 10:24 by memory sdhc

Transcend 4 GB Class 6 SDHC Flash Memory Card TS4GSDHC6

Product Description

Transcend 4 GB Class 6 SDHC Flash Memory Card TS4GSDHC6
List Price: $6.87
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Fully compatible with SDA 2.0. Suitable for SDHC compliant devices, MLC flash chip with high transfer rates. Perfect for high-end digital devices. Make sure your device can support SDHC format before you buy. SDHC cards can use SD and SDHC.
Transcend 4 GB Class 6 SDHC Flash Memory Card TS4GSDHC6

 

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Kingston 8 GB microSDHC Class 4 Flash Memory Card SDC4/8GB

Wednesday, 05. May 2010. 16:13 by memory sdhc

Kingston 8 GB microSDHC Class 4 Flash Memory Card SDC4/8GB

Product Description

Kingston 8 GB microSDHC Class 4 Flash Memory Card SDC4/8GB
List Price: $11.56
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From 4 GB microSDHC cards offer higher storage for more music, more videos, more pictures, more games more of everything "is necessary in today ¿s mobile world. The microSDHC card allows you to maximize today ¿s revolutionary mobile devices. Kingston's microSDHC cards use the new class ¿¿s Class 4 rating, which guarantees a minimum transfer speed of 4 MB / sec. for optimum performance with devices that use microSDHC. Identical in size to today's standard microSD card, the microSDHC cards are designed to comply with SD Specification Version 2.00 and are only recognized by microSDHC host devices. Can be used as full-size SDHC cards when used with the included adapter. To ensure compatibility, look for the microSDHC or SDHC logo on host devices (eg phones, PDAs and cameras). Anywhere in the mobile world, you can trust
Kingston 8 GB microSDHC Class 4 Flash Memory Card SDC4/8GB

 

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Transcend 4 GB Class 6 microSDHC Flash Memory Card TS4GUSDHC6

Tuesday, 04. May 2010. 15:46 by memory sdhc

Transcend 4 GB Class 6 microSDHC Flash Memory Card TS4GUSDHC6

Product Description

Transcend 4 GB Class 6 microSDHC Flash Memory Card TS4GUSDHC6
List Price: $9.49
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Transcend high capacity, high performance microSDHC Class 6 memory cards are fully compatible with SD version 2.0 and comply with Class 6 speed standards, offering guaranteed minimum write speed of 6MB / s to see if the device remains quick and responsive while saving , copying, recording or viewing files. Its extra capacity storage device lets you use your laptop more effectively with the convenience of being able to store hundreds of music files, videos, pictures, games and personal information. Transcend Micro SDHC Class 6 memory cards are the perfect complement for your mobile phone, game console, GPS, or other portable device. MicroSDHC cards only work with SDHC compatible devices. Make sure your device bears the SDHC logo on its packaging or manual.
Transcend 4 GB Class 6 microSDHC Flash Memory Card TS4GUSDHC6

 

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Sandisk 4GB MicroSDHC Memory Card with SD Adapter (BULK Packaging)

Monday, 03. May 2010. 18:26 by memory sdhc

Sandisk 4GB MicroSDHC  Memory Card with SD Adapter (BULK Packaging)

Product Description

Sandisk 4GB MicroSDHC Memory Card with SD Adapter (BULK Packaging)
List Price: $5.16
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Another great invention from SanDisk, the microSD is about a quarter the size of an SD card and is the new standard of SD flash memory specifically designed for use with ultra-small mobile phones and other devices. Like the miniSD, the microSD / TransFlash is ideal for storing media files such as music, videos and photographs in compatible mobile phones.
Sandisk 4GB MicroSDHC  Memory Card with SD Adapter (BULK Packaging)

 

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Sandisk 8GB EXTREME III SDHC SD Card Class 6 (SDSDX3-8192 Bulk Package)

Sunday, 02. May 2010. 10:19 by memory sdhc

Sandisk 8GB EXTREME III SDHC SD Card Class 6 (SDSDX3-8192 Bulk Package)

Product Description

Sandisk 8GB EXTREME III SDHC SD Card Class 6 (SDSDX3-8192 Bulk Package)
List Price: $29.76
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Professional photographers who demand one of the faster memory cards harder and more durable on the market should choose the SanDisk Extreme III SD. Built to work in adverse conditions, with SanDisk Extreme III youll get more speed, better performance and unsurpassed reliability. That's because only SanDisk Extreme III feature innovative ESP Technology for the fastest speeds and highest performance. ESP stands for Enhanced Super-Parallel Processing. In short, it means that you are getting the fastest read / write speed of 20 MB to an incredible minimum reading and second ** sequential write speed speed youll definitely appreciate whenever you find yourself shooting and storing pictures in harsh environments, the extreme temperatures and altitude. package does not, in bulk to the case of SD
Sandisk 8GB EXTREME III SDHC SD Card Class 6 (SDSDX3-8192 Bulk Package)

 

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A-DATA 4 GB Class 6 SDHC Flash Memory Card ASDH4GCL6AP [Amazon Frustration-Free Packaging]

Saturday, 01. May 2010. 10:54 by memory sdhc

A-DATA 4 GB Class 6 SDHC Flash Memory Card ASDH4GCL6AP [Amazon Frustration-Free Packaging]

Product Description

A-DATA 4 GB Class 6 SDHC Flash Memory Card ASDH4GCL6AP [Amazon Frustration-Free Packaging]
List Price: $14.28
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Read customer review

The best choice for high-end digital devices! To save all the precious moments, precious and romantic, you can purchase a high resolution digital camera, digital camcorder or other high-end devices. However, normal Secure Digital Card (SD) in the market today can not allow to capture these moments because of slow read / write speed. Slow read / write speed may cause lag time between shots and result in losing the ability to record some of your best memories. This A-DATA Turbo SDHC Memory Card (Class 6), described the performance of the card class 6, which means that the card has a guaranteed write speed of at least 6MB / s, can reduce the time between shots. For those high-end digital devices, A-DATA Turbo SDHC Memory Card (Class 6) ensure that the capture of each "picture" perfect time! File System: FAT32 Enhanced DSC function and smooth support video recording: all devices
A-DATA 4 GB Class 6 SDHC Flash Memory Card ASDH4GCL6AP [Amazon Frustration-Free Packaging]

 

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