Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I currently have a PCI 802.11n wireless network card (TP-LINK TL-WN951N 300M). Would a PCIe network card improve 1. download speed and/or 2. range (i.e. the bars that windows shows when talking about wireless connectivity in the bottom right corner of the screen)?

share|improve this question
up vote 6 down vote accepted

Wireless N maximum possible data rate is 600 Mbps. That's 75 MB/sec. PCI data rate is at least 133 MB/sec. So, PCI bus is most probably not your bottleneck.

Regarding the wireless range, chipset and antenna play a major role, not the connection/bus technology. So a better card with an external antenna connector, with a better antenna, will have a longer range. PCI or PCIe, it's not important.

First figure out where your bottleneck is, I suspect it's your Internet connection (from your router to the Internet), and not a wireless link from your computer to the router.

share|improve this answer
> First figure out where your bottleneck is, I suspect it's your Internet connection Or from the ISP in regards to the total speed. As for range, that's probably being limited by the power of the card (check the settings; you may be running in reduced power and can configure it to use more), not to mention walls and such. In short, haimg is correct; the bus connector of the card plays pretty much zero role for a network card (at least a wireless one; a wired one connected to a gigabit intranet may matter). – Synetech Jun 14 '12 at 19:12
while pci is capable of being 64 bit and double speed (66) MHz, these varieties are very rarely seen outside of servers. – Mokubai Jun 14 '12 at 19:40

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.