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external harddisk

873 views 1 reply 2 participants last post by  MaverickUK 
#1 ·
i bought an external hard disk its western digital 320gb, i observed data transfer rate of that disk is 30-40mbps only but ability of usb2.0 is 480mbps, how come very less data transfer, is there any way to increase it or any other application to increase it.

help me in resolving
thanking you
sandy
 
#2 ·
Transfer rates externally (i.e. USB or Firewire) are recorded in mega bits per second, however ATA and IDE protocols are measured in mega bytes per second. This means 480bp/s translates to 60MB/s (taking into consideration 1 byte = 8 bits). It seems the speeds on external USB drives are bottlenecked at around 40MB/s anyway - so if you're missing out, it won't be by too much.

Speeds also depend on how your external drive (well, inside the enclosure) works and reads the information off the disk. For example, reading from the outer edges of the disk will result in faster transfer rates than if it was reading from the inner part of the disk.
 
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