A 65% keyboard keeps the alphanumeric block and dedicated arrow keys while compressing navigation functions and removing the number pad and function row.
Manufacturers place Delete, Page keys and the right column differently within the 65% format. Look at the actual board rather than relying on the percentage.
Mechanical, Hall-effect and optical boards use different sensing systems. A hot-swap claim applies only to the socket and switch type specified.
USB, 2.4GHz and Bluetooth serve different latency, charging and multi-device needs. Not every model includes all three paths.
Missing function-row and navigation commands move to key combinations or layers. Good software or onboard mapping can make the compact layout easier to adapt.
Non-standard right-side key sizes can complicate replacement sets. Stabiliser feel on Space, Enter and Shift affects sound independently of the switches.
