connect midi keyboard

$9.59 USB TO MIDI CABLE MUSIC KEYBOARD INTERFACE ADAPTER COMPUTER CONNECTION NEW	$6.99 USB TO MIDI CABLE MUSIC KEYBOARD INTERFACE ADAPTER COMPUTER CONNECTION
$49.77 Yamaha UX16 MIDI/USB Converter, Connect Your Keyboard To Your Computer	$16.95 CASIO UNIVERSAL PC MIDI CONNECTOR CABLE MMCABLE Connect Keyboard to PC NEW