It's not always present in Wi-Fi adapters, though, with USB Wi-Fi not having enough space for the extra electronics needed.

A device that adds wireless connectivity to a laptop or desktop computer. All of the adapters below are available as external USB modules as well as PCI or PCI Express (PCIe) cards that plug into ...

Overall Mini PCI-e is a fairly unloved interface, but we’ve seen the reverse of this hack before, a Mini PCI-e to USB adapter used to add a 12-axis sensor to a laptop.

TPLink Archer TBE400UH is a tri-band USB adapter designed to support the Wi-Fi 7 standard. This adapter is engineered to deliver simultaneous connectivity across three frequency bands, with data ...