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USB 2.0 card...PCI or PCI-e x1

Hi there, I have the following system. I am considering putting in an internal USB 2.0 Card. My question is should I use a PCI card or a PCI-e x1 card? Does the ACTUAL throughput of USB 2.0 warrant the use of PCI-e x1 or will the slower PCI "do"? Thanks.

Windows 7 64 bit
2.70 gigahertz AMD Athlon 7750 Dual-Core
256 kilobyte primary memory cache
1024 kilobyte secondary memory cache
8 kilobyte tertiary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded

Board: ASUSTeK Computer INC. M3N78-VM Rev X.0x
Bus Clock: 200 megahertz
BIOS: American Megatrends Inc. 0907 01/13/2009

160.04 Gigabytes Usable Hard Drive Capacity
130.51 Gigabytes Hard Drive Free Space

HP DVD Writer 1040r [CD-ROM drive]
LITE-ON DVDRW SHM-165P6S [CD-ROM drive]
3.5" format removeable media [Floppy drive]

WDC WD1600AAJS-22PSA0 [Hard drive] (160.04 GB) -- drive 0, SMART Status: Healthy

3968 Megabytes Usable Installed Memory

Slot 'DIMM0' has 2048 MB
Slot 'DIMM1' has 2048 MB
Slot 'DIMM2' is Empty
Slot 'DIMM3' is Empty
5 answers Last reply Best Answer
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  1. Best answer
    IIRC, the max transfer speed of USB 2.0 is 480 Mbps, which roughly translate to 60 Mb/s. The max speed of a PCI slot is 132 Mb/s, and thus a PCI USB 2.0 card should work without any bandwidth issues. PCI-e 1x provides 1000 Mb/s max, which would be far more useful as a sound card or some other PCI-e peripheral.
  2. Unless you go USB3, which is USB2 compatible and would be better off as an PCI-E as it will saturate PCI bus.
  3. Real world throughput on USB 2.0 devices comes nowhere near thier theoretical maximums, so short simple answer is no, it doesn't matter.
  4. Thanks to all. I suspected as much but haven't found a use for my PCI-e x1 card slot yet so wanted to make sure before I purchased. I will go with the PCI and let the chips fall where they may. Thanks again
  5. Best answer selected by bobarotti.
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