Older SD cards offer memory capacities from 1 GB up to 4 gigabytes.
The abbreviation SD stands for SECURE (D)igital. SD cards use a Flash memory such as USB memory sticks. When you transfer regularly only small amounts of data from a few gigabytes, a USB 2.0 Flash drive is sufficient. For the USB 2.0 model with the same storage volume, you pay half. There are already some USB 3.0 Flash device on the market. Note The new standard USB 3.0 will enable data transfer rates of up to 5 GB/s (625 MB / s). However the maximum data transfer rate is then reduced to 12 Mbit/s (1.5 MB / s) or less. You can connect USB 2.0 devices on older 1.0 USB slots. USB 2.0 enabled drives to reach a maximum transfer rate of 480 Mbit/s (60 MB / s). Note: The following instructions and tips apply to Windows 7, but it is a similar way in Windows Vista and Windows XP.Ĭurrently, USB mass storage devices are available in earlier USB 1.1 but as well as in USB 2.0 bus which is much faster.
Current notebooks and desktop PCs also by default have SD card slots so that you can take advantage of the small cards not only to share of digital photos but as a universal backup device for all the important documents and private files. SD cards have been used in the past as mass storage devices in digital cameras.
Above all, due to the small size, the enormous capacity of currently 2 up to 256 gigabyte and low purchasing costs, the handy USB memory sticks have become a perfect travel companion.Įven flatter an lighter are SD card storage devices, which have comparable capacities and can be purchased at a reasonable price. How can I correctly log the USB Flash memory on and off? How can I speed up the data access? Resolutionįor transport and as a temporary storage facility for private and important data USB memory sticks and SD cards have since long become indispensable. I use a USB storage device to back up my data.
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