Full Vs. High Speed USB Thumb Drives
USB flash drives (Thumb drives) are a way to transfer files to and from your computer. Flash drives can also be used to speed up Windows Vista and Windows 7 using Readyboost. How fast a USB flash drive writes data is related to a combination of USB transfer speed and flash memory transfer speeds.
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USB
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Universal Serial Bus or (USB) is used to connect external devices to a computer via a universal interface. It offers faster speeds and more compatibility than its serial/COM port predecessors.
Flash Drives
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Flash drives were introduced in 2000, and have since replaced floppy disks. They connect to a PC with a USB type A connector. Flash drives are portable, easy to use and inexpensive memory storage devices.
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USB Speeds
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USB version 1.1 had a maximum speed of 12Mbps. This is considered a full speed USB connection. High Speed USB was introduced with the release of USB 2.0. Transfer speed was increased to 480Mbp
Full Speed Flash Drives
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Flash drives don't utilize the full data transfer rate of USB due to the time it takes to write data onto the flash memory itself. Different manufacturers and models may have various transfer rates.
Full Speed Flash Drives
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Full speed flash drives are those compliant with the USB 1.1 specification. These older drives top out at about 1Mbps.
High Speed Flash Drives
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High speed flash drives utilize the USB 2.0 standard. The transfer rate of these drives are higher than full speed flash drives with speeds around 15Mbps.
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