Establishments primarily engaged in packaging, repackaging, and bottling of purchased chemical products, but not engaged in manufacturing chemicals and allied products, are classified in Wholesale or Retail Trade industries.
A phone connector, also known as phone jack, audio jack, headphone jack or jack plug, is a family of electrical connectors typically used for analog audio signals. The phone connector was invented for use in telephone switchboards in the 19th century and is still widely used. The phone connector is cylindrical in shape, with a grooved tip to retain it. In its original audio configuration, it typically has two, three, four and, occasionally, five contacts. Three-contact versions are known as TRS
USB Type A connectors, officially called Standard-A connectors, are flat and rectangular in shape. Type A is the original USB connector and is the most recognizable and commonly used connector. USB Type-A connectors are supported in every USB version, including USB 3.0, USB 2.0, and USB 1.1. USB 3.0 Type A connectors are often, but not always, the color blue. USB 2.0 Type A and USB 1.1 Type A connectors are often, but not always, black. Note: The male USB Type A connector is called the plug and the female connector is called the receptacle but is commonly referred to as the port.