Mini PCIe (Mini PCI Express, Mini PCI-E) is a replacement for the older PCIe card format. Most laptop computers built after 2005 are based on Mini PCI Express and can have several Mini PCIe Card slots. The standard size for Mini PCIe flash modules/cards is approximately 1/4 of the full-sized PCIe Card format.
Mini PCIe Flash Modules are generally used in Netbook upgrades. They are often supplied with only a small amount of storage capacity. If your Netbook has a free Mini PCIe slot you can plug in a disk storage upgrade in a matter of minutes.