What Does The Trident Symbol On A USB Port Mean?

Here's what every USB port type actually means, by the way. The trident symbol, a three-prong icon, signals classic USB, and the rest are all iterations of that. The trident or USB symbol is the universally accepted logo for the standard. The trident inside a battery icon tells you the port also supports Sleep-and-Charge or USB Power Delivery (PD) technology. Meanwhile, a trident with numbers tells you the port is a high-performance USB4 with the listed data transfer speeds, so 40 means up to 40Gbps transfer speeds.