This USB Micro A icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,400 icons, all in the same style and quality.
This looks like a rectangle situated horizontally. There's a smaller rectangle attached to the top side of the bigger rectangle, on the inside. there's a bunch of small squares hanging off of the rectangle.