![What do the 3 symbols (circle, square, triangle) in the USB Type-A plug represent? - Electrical Engineering Stack Exchange What do the 3 symbols (circle, square, triangle) in the USB Type-A plug represent? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/pMfUI.png)
What do the 3 symbols (circle, square, triangle) in the USB Type-A plug represent? - Electrical Engineering Stack Exchange
![Icon usb 3.0. Blue sign isolated on white background. Vector illustration flat design. Usb symbol of the new generation with high speed. Stock Vector | Adobe Stock Icon usb 3.0. Blue sign isolated on white background. Vector illustration flat design. Usb symbol of the new generation with high speed. Stock Vector | Adobe Stock](https://as2.ftcdn.net/v2/jpg/02/23/21/13/1000_F_223211348_6n5cNKgeAeMWV7umbbCKGYJli6iDDUXA.jpg)
Icon usb 3.0. Blue sign isolated on white background. Vector illustration flat design. Usb symbol of the new generation with high speed. Stock Vector | Adobe Stock
![USB SS 3.0 isolated icons. symbols. Vector illustration. It can be used for the web sites and mobiles. Stock Vector Image by ©odkyrylov.gmail.com #332468796 USB SS 3.0 isolated icons. symbols. Vector illustration. It can be used for the web sites and mobiles. Stock Vector Image by ©odkyrylov.gmail.com #332468796](https://st3.depositphotos.com/25422082/33246/v/1600/depositphotos_332468796-stock-illustration-usb-ss-3-0-isolated.jpg)