12. PCI EXPRESS (PCIe)
● The PCIe is an improved version of PCI that took over
both the older version and AGP. It is pretty much the de
facto standard now, and there a few “versions” of it:
• 1X PCIe
• 4X PCIe
• 8X PCIe
• 16X PCIe
• 32X PCIe
18. ● There is absolutely nothing wrong with external USB devices. They are great, convenient, and
still evolving. But the key importance here is that a 16X PCIe slot can process a lot more data
than a regular USB.
● That makes it perfect for data-heavy components such as a graphics card, or a video capture
card… These are also the devices that you probably won’t ever detach, and keep fixed inside
the computer case.