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Types of Memory Cards

Memory stick media has been revised severally since first launch by Sony in 1998. In fact, the original format is now not in use. However, its name is still being used to describe similar types of products. Memory cards are now used in many electronics today, from digital cameras to cellphones and other handhelds.
Today, advanced types include printed memory sticks are being used for promotional campaigns same way as promotional power banks and custom usb drives.
Although many customers do not consider factors beyond price, capacity and compatibility when buying memory sticks or printed memory sticks, there are different types of memory cards.  For instance, you might want to consider technical information such as transfer speeds and even design when looking for a promotional printed memory card.  
Basically, there are three types of memory cards:  3.3 mm thick Type I cards that are usually used for additional ROM or RAM to a computer; 5.5 mm thick Type II cards often used for modem and fax modem cards; and 10.5 mm thick Type III card which is used in portable disk drives.
CompactFlash (CF): It support 3.3V and 5V operation voltages and can switch between those unlike other small-form factor flash memory cards that support just one voltage. It was introduced by SanDisk in 1994. It is in two types: 42.8mm x 36.4mm x 3.3 mm thick Type I and 42.8mm x 36.4mm x 5.5 mm thick Type II cards.
Secure Digital Card (SD card): These are used in many portable devices and widely popular. They are a great option for those looking for promotional printed memory sticks to substitute power banks and custom usb drives.  
The miniSD Memory Card was developed to serve mobile phone markets and is smaller than the original SD. They are MiniSD cards are 21.5 mm x 20 mm x 1.4 mm and generally provide 16MB to 256MB of storage.   
MicroSD: It is about 1/4th the size of the SD card at 15mm W 11mm W 0.7mm and is the smallest memory card available.
MultiMediaCard (MMC) standard: The 32 mm x 24 mm x 1.4mm card was introduced in 1997 by SanDisk and Siemens. It has a transfer speed of 2.5MB/s.  
Sony Memory Sticks: These are light compact and work for a variety of devices. Most can also be used on Memory Stick PRO compatible products with an adapter.
They can in different sizes including 15 mm x 12.5 mm x 1.2 mm for Micro; 50 mm x 21.5 mm x 2.8 mm for PRO; and 31 mm x 20 mm x 1.6 mm for PRO DUO.
SmartMedia: It was introduced by Toshiba in 1995 and now obsolete. They measure 45 mm x 37 mm x 0.76 mm and come in 16MB, 32MB, and 128MB versions.
XD picture card (xD or Extreme Digital): It is a 20mm x 25mm x 1.7mm removable flash memory for digital cameras. They were developed by Fuji film and Olympus and are still in use in digital cameras made by the two companies.  


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