Super simple to install, plugs into the 8 pin keyboard connector and allows the use of a standard PS/2 keyboard on your Amiga 500 

On the bottom side there's a 2x8 female header so it's compatible with both possible pinouts of the keyboard connector, you plug it in position A and if it doesn't work switch to position B. This is because on some boards the clock and data lines are swapped.
There's also a POWER and DRIVE led just like on the original keyboard.
The chip is socketed in case you want to tinker with the firmware and reprogram it in the future, but of course it comes preprogrammed with the original firmware that should work with pretty much all PS/2 keyboards
Price: 20€ + shipping

On the bottom side there's a 2x8 female header so it's compatible with both possible pinouts of the keyboard connector, you plug it in position A and if it doesn't work switch to position B. This is because on some boards the clock and data lines are swapped.
There's also a POWER and DRIVE led just like on the original keyboard.
The chip is socketed in case you want to tinker with the firmware and reprogram it in the future, but of course it comes preprogrammed with the original firmware that should work with pretty much all PS/2 keyboards
Price: 20€ + shipping