This is an image of a square. Inside of the square is a North American plug outlet. The plug outlet is composed of two vertical lines side by side, and below them is a capital D shape that sits on its side.
This is a Socket icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,100 icons, all in the same style and quality.