A Wireless PCI Express (PCIe) card is a hardware component used to add wireless network capabilities (Wi-Fi, etc.) to a desktop computer. It connects to the motherboard via the PCIe slot, which is commonly used for adding expansion cards to a system. These cards allow your desktop to connect to wireless networks (Wi-Fi) devices, offering both internet connectivity and wireless peripheral support.

Here are some key features of a typical Wireless PCIe card:

1. Wireless Network Support

• Wi-Fi: The card provides wireless internet access by supporting Wi-Fi standards like 802.11ac (Wi-Fi 5), 802.11ax .

2. Form Factor

• These cards come in different sizes, but most modern wireless PCIe cards are half-height or full-height depending on the size of your PC case.

3. Antenna

• Wireless PCIe cards typically come with external antennas to improve the reception and signal strength. These antennas may be detachable or adjustable for better placement and performance.
• The number of antennas varies, with 2 or 3 antennas being common for improved range and signal quality.

4. Speed and Performance

• PCIe cards offer higher bandwidth compared to older PCI cards, resulting in better Wi-Fi speeds.
• Newer models, especially those with Wi-Fi 6 or Wi-Fi 6E support, can provide much higher speeds, improved range, and reduced latency.