How can you connect your roland exr 5 keyboard to your PC?

To connect your Roland EXR-5 keyboard to your PC, you can use a USB MIDI interface or a standard MIDI cable if your keyboard has MIDI OUT ports. If using USB, simply plug it into your computer's USB port and install any necessary drivers. For MIDI cables, connect the keyboard's MIDI OUT to the MIDI IN on the interface, then connect the interface to your PC via USB. Once connected, you can use music software to send and receive MIDI data between the keyboard and your computer.