Wireless network card quer WiFi 802.11 b/g/n with external antenna (KOM0640)

The quer Wireless network card WiFi 802.11 b/g/n with external antenna (KOM0640) is a compact add-on adapter that enables Wi‑Fi connectivity for compatible desktop or laptop systems. It supports the 802.11 b/g/n standards and operates on standard Wi‑Fi frequency bands to provide wireless network access for internet browsing, file sharing and local network services. The external antenna improves signal reception and can assist in achieving a more stable connection in typical home and small office environments.

Advantages

This wireless network card offers compatibility with common 802.11 b/g/n networks and a removable external antenna for enhanced reception. It provides plug-in convenience for systems lacking integrated Wi‑Fi or for users seeking an upgrade to their existing wireless capability. The device is designed for straightforward installation and stable operation with standard Wi‑Fi routers and access points.

Suitable for

• Upgrading desktop PCs or older laptops to add Wi‑Fi connectivity
• Connecting to home or small office wireless networks for internet access
• File sharing and local network access over standard wireless bands

Key specifications

• Wireless standards: 802.11 b/g/n
• Frequency bands: standard 2.4 GHz Wi‑Fi band (compatible with b/g/n)
• Antenna: external antenna for improved reception
• Interface: compatible with common PC expansion or USB interface depending on model fit
• Use environment: designed for home and small office wireless networks

How to use

Install the wireless network card according to the system type and the card’s physical interface, then attach the external antenna and position it for best reception. After hardware installation, enable the device in the operating system and install any required drivers provided by the manufacturer or via system update. Use the network manager in your operating system to scan for available Wi‑Fi networks, select the desired SSID, and enter the network password to connect.

Usage recommendations

For reliable performance, place the external antenna in a vertical orientation and avoid physical obstructions between the adapter and the wireless router. Keep driver software up to date and use WPA2 or WPA3 security on the wireless network when available to ensure secure connections.