The standard PS/2 driver supports a protocol that sends a "make" and "break" code for every single key independently. PS/2 is not limited by the USB HID report descriptor’s packet size (which typically caps at 6 keys + modifiers). A driver-standard PS/2 keyboard can theoretically register every key on the board simultaneously. For competitive gamers and high-frequency traders, this is non-negotiable.
Because the PS/2 protocol is purely electrical and lacks the complex device enumeration of USB, a PS/2 keyboard cannot be reprogrammed to inject keystrokes as a malicious USB device (BadUSB). Many government and secure facility workstations still mandate PS/2 keyboards for this reason. driver standard ps 2 keyboard
, allowing every single key to be pressed and registered simultaneously without the "ghosting" limits sometimes found in USB devices. Laptop Integration The standard PS/2 driver supports a protocol that
Each command must be followed by waiting for an acknowledgment ( 0xFA ). For competitive gamers and high-frequency traders, this is