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Is a PCI SATA card slower than a SATA connector on the motherboard?

Discussion in 'PC hardware help' started by *agent47*, Jan 21, 2007.

  1. *agent47*

    *agent47* Guest

    i have 2 sata ports on my pc. i want another one for a hard drive. if i fit in a pci card wid extra 2 sata ports, is this slower? slower transfer rates?
  2. BigDK

    BigDK Regular member

    Dec 1, 2005
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    The answer is probably yes the PCI will be slower.
    Although getting a good card will mean you are unlikely to see any real-time speed difference, it would only be visible with test tools used for bench-marking.

    PCI speed is 132MBPs
    SATA is 150MBPs
    SATA 2 is 300MBPS

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