Netis WF2118 300 Mbps Wireless Adapter

The span of frequencies, expressed in hertz (Hz), that a device can operate within or respond to. It may be given as a single value, a numeric range (e.g., "20 000‑50 000 Hz"), or an open‑ended interval such as "2.4 GHz+" indicating the lower bound only.

The amount of signal amplification provided by an antenna, expressed in decibels relative to an isotropic radiator (dBi). This value indicates how much the antenna concentrates radio energy in a particular direction and helps users compare coverage or range potential across devices.

Indicates whether the product is designed to be used outside of a computer system or other enclosure, such as an external hard drive, USB card reader, or network adapter. A value of "Yes" means it can operate independently from inside a chassis; a value of "No" indicates it requires internal mounting.

The temperature interval, expressed in degrees Celsius (°C), within which a product can safely operate without risk of damage or performance degradation. Values may be presented as a single temperature, a minimum–maximum range (e.g., "0 - 70 °C"), or an average operating point.

Indicates the version of the PCI Express specification supported by a network card or similar component, expressed as a numeric revision such as 2.0, 3.0, or 4.0. This value determines the maximum bandwidth and compatibility with other PCIe devices.