USB vs. PS2 ports: The battle between the old and the new. Which is better?
USB 3-Port Hub with PS/2 Port Cable
PS/2 port - Wikipedia
What Are the USB Ports on the Playstation 2 for?
USB to PS/2 Convertor - Instructables
PlayStation 2 Dual Controller to USB Adapter - Generic (PC / PS3)(New) | Buy from Pwned Games with confidence. | PS2 Accessories
PS2 USB VGA adapter for KVM controller via Cat.6 UTP cable - Cablematic
USB to PS2 Converter Cable Connect for Keyboard Mouse - GenNext Computer
Adaptador portátil compatible con PS2 a HDMI, proporciona Procesamiento de señal avanzado, restaura la pantalla Original del juego|Fuentes de alimentación| - AliExpress
16 Types of Computer Ports and Their Functions
PlayStation 2 Raspberry Pi Restoration - Thomas Hunter II
Sony PlayStation 2 Teardown - iFixit
What is the thing next to the USB ports for? : r/ps2
Types of Computer Ports and Their Functions – Svanews