Amazon.com: OTraki USB MIDI Cable Converter 2.0 3.0 USB Interface to in-Out MIDI Cord 6.5ft with FTP Processing Chip + 5 PIN DIN Perfect Works for PC Laptop to Professional Piano Keyboard
M-Audio Uno USB Bus-Powered MIDI Interface - Sound Productions
M-Audio UNO 1x1 USB MIDI Interface | Full Compass Systems