also @ TechSpot: OCZ Vertex 450 SSD Review

Usb 2.0

Discussion in 'Other Hardware' started by rjshenal, Jan 31, 2004.

  1. rjshenal Newcomer, in training Posts: 18

    Hello:

    If I buy a USB 2.0 card and plug it into a PCI slot, wouldn't the 480 Mega bits per second be limited to 133 Mbs by the PCI bus?

    Thanks

    rjshenal
    rjshenal, Jan 31, 2004
    #1

  2. Rick TechSpot Staff Posts: 6,252   +38

    It will, but it is different.

    The PCI bus offers 133 megabytes per second, where USB 2.0 offers 480 megabits second. The difference being there are 8 bits in a byte, meaning USB 2.0 really gives about 60MB/sec transfer.


    So no, you will not be limited. Mbps (megabits) is just a marketing gimmick for people who aren't able to spot the difference between Mbps and MB/sec.

    Also, firewire is 400Mbps.
    Rick, Jan 31, 2004
    #2

  3. ---agissi--- TechSpot Paladin Posts: 2,369   +9

    Great post Rick, it was a good read!
    ---agissi---, Jan 31, 2004
    #3
Topic Status:
Not open for further replies.

Add New Comment

Social Login & Guest Posting

TechSpot Members
Login here or sign up for free,
it takes about a minute.
Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.