Over current Protection. OVP: Over Voltage Protection. OTP: Over Temperature Protection. SCP: Short Circuit Protection. Light and portable, this product is easy to carry as a replacement. Light weight. Easy to carry outside and use. Small size ensure high quality performance. What You Get: 1 x Replacement charger. Cable Length: 3FT Digipartspower AC-DC Adapter Charger for Yamaha PSR-S975 Digital Workstation Power Supply Mains