HQRP® Sustain Pedal/FS controller is suitable for all electronic keyboards synthesizers tone modules or drum machines with 1/4 phone jack sustain-pedal input. The pedal is made in foot switch style and has a specially designed lower rubber part allowing the pedal to stay in place while you play. Compatible with: Alesis SR-16 SR-18 Drum Machine Yamaha DGX-230 DGX-530 DGX-640 EZ-220 DGX-202 DGX-220 DGX-520 DGX-620 P-100 P-120 YPG-235 / YPG-535 / YPT-230 / YPT-330 / PSR-E243 / YPT-240 Keyboards. Casio CTK-2090 / CTK2090 / CTK-2400 / CTK2400 / CTK-4400 / CTK4400 LK-50 LK-55 LK-73 LK-230 LK-160 LK-165 LK-240 LK-270 LK-280 Keyboard. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.