802.11b

One of the very first forms of WiFi, invented in 1999. 802.11b is also one of the slowest forms of WiFi nowadays, and considered obsolete.

Guy 1: Bruh, why is this network so slow?
Guy 2: It's 802.11b.
Guy 1: WTF is 802.11b?
Guy 2: First form of wireless internet, really really slow.
Router: *Crashes*