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TODAY'S Flash Memory SPECIAL DEALS

What is flash memory?

Toshiba invented Flash memory in the 1980s as a new memory technology that allowed stored data to be saved even when the memory device was disconnected from its power source. It is a technology that is primarily used in memory cards and USB flash drives for general storage and transfer of data between computers and other digital products.

Where are flash memory cards used?

In consumer devices, Flash memory is widely used in:
• Notebook computers • Personal computers • Personal Digital Assistants (PDAs) • Digital cameras • Global Positioning Systems (GPS) • Cell phones • Solid-state music players such as • Electronic musical instruments • MP3 players • Television set-top boxes
Flash memory is also used in many industrial applications where reliability and data retention in power-off situations are key requirements, such as in:
• Security systems • Military systems • Embedded computers • Solid-state disk drives • Networking and communication products • Wireless communication devices • Retail management products • Medical products (e.g., handheld scanners)

Tips for buying flash memory cards

Here are some tips and things to consider when buying flash memory cards for your digital camera.

1. Verifying compatibility of the flash memory card with your digital camera.

Flash memory cards come in different forms and capacities (sizes). The first thing you must consider is which type of card your digital camera accepts. Some common types of memory cards for digital cameras include: When in doubt, you should read the user guide or manual that came with your camera. You may also want to visit the camera manufacturer's website to determine exactly which type of memory card your camera uses.

2. Determining the capacity-to-price ratio of the card

The larger the capacity of the memory card, the more pictures/videos you can store on it. Generally, the higher the storage capacity of a memory card, the higher the price will be.  A good way to determine what size is right for you is to take a look at your camera usage.  If you take a lot of pictures, shoot movies, or have a high Megapixel digital camera, then a higher capacity card may be a good idea. If you only take a few pictures at a time, or have no issues with frequently transferring pictures to your computer, you shouldn't have any problems using a smaller capacity memory card.  Since the price of flash memory is significantly lower today than when first introduced, buying the perfect size memory card for your level of use has never been easier.

3. Knowing the speed of the memory card

Memory cards can vary in speed. The speed refers to how fast information is written to or read from the card.  Naturally, a memory card with a faster speed is better than a slower speed memory card (40x is better than 12x, and 80x is better than 40x). Generally, higher speed cards will have a higher price and the card speed information will usually be written on the card packaging and on the memory card itself. Memory cards with faster speeds  are often labeled as "high speed" "professional" "high performance" or "ultra speed" cards.  They are usually sought after by professional photographers who need quick speeds for processing a high volume of pictures in a very short amount of time. Faster memory cards are also optimal for recording video because they are able to capture a higher frames-per-second, which makes for a better quality video.

4. Comparing different memory card brands

Opinions between industry experts differ as to whether or not there is a distinction in speed, performance, reliability, and longevity between competitively priced memory cards and those with more popular brand names.  One thing that is always a good idea to take note of is a company's warranty before you purchase a memory card. Some manufacturers (such as Transcend) offer a lifetime warranty against manufacturer defects and a hassle-free return policy for their memory cards. It's also a good idea to look into the manufacturer's customer satisfaction rating through one of the many online review sites before buying a memory card.

5. Learning about the extras

Some memory cards have extra features that may fit your needs and make your life just a little easier. Secure Digital (SD) cards have a lock/unlock switch on the side to lock the card and protect the information from being accidentally deleted. Others have built in software featuring password protection to prevent unauthorized access to the information on the memory card. Some cards are made specifically for use in gaming systems or mobile phones and as technology advances, the extra features just keep getting better.

What is "X" Speed Rating?

The "X" rating is a unit of measurement for the data transfer rate. It is commonly used for write speed, because users generally care more about how long it takes to write data to a Flash card when using it in a digital camera or cell phone. Typically, read speeds are higher than write speeds for Flash cards, so the write speed is more meaningful when measuring performance. The base rate is 150 kB/s, so for example, 20x = 20 * 150 kB/s = 3.0 MB/s.

The following table lists some common ratings and their respective maximum transfer rates.

Rating	Speed (MB/s)
6x	0.9
32x	4.8
40x	6.0
66x	10.0
100x	15.0
133x	20.0
150x	22.5
200x	30.0
266x	40.0
280x	42.0
300x	45.0
333x	50.0
400x	60.0
433x	65.0
600x	90.0
667x	100.0