9V 0.5A Power Supply Adapter - Center Negative, Compatible with BOSS Electric Guitar Effect Pedals, Casio Piano Keyboard AD-5 AD-5MU, 9V DC Musical Instruments Replacement Charger Cord (9 Connector)

About this item

• 9V DC 500mA Tip Negative：Output: 9Volts DC 0.5A (500mA) –Tip Negative (-) design power supply is engineered to match devices requiring reverse polarity power. Built with pure copper wiring and a high-quality transformer, it delivers stable, ripple-free power to protect your gear from damage caused by polarity mismatches or unstable current – the perfect cost-effective replacement for OEM adaptersIMPORTANT NOTE: The 9 replacement plug head are NOT compatible with this 9V0.5A Center Negative Adapter – they are only designed for Center Positive Adapters. Retain them if they fit your other adapters. Please DOUBLE CONFIRM the DC jack dimensions to ensure the compatibility of your devices
• Wide Compatibility & Critical Notes: Fits BOSS Guitar Pedals, Casio Keyboards & Most 9V DC Devices
• POLARITY MUST MATCH: CENTER NEGATIVE (✘ NOT for Center Positive Equipment)
• CURRENT RATING: 500mA (0.5A) – Safe for Devices Requiring ≤500mA
• VERIFY YOUR DEVICE FIRST!✅ Critical Check: Confirm your device’s 3 key specs – ① Voltage = 9V DC; ② Polarity = Center Negative (symbol near DC jack); ③ Current ≤ 500mA.
• Safe & Durable: Multi-Protection & Premium Build​ Equipped with 4 safety protections: Overvoltage Protection, Overcurrent Protection, Short Circuit Protection, and Overheating Protection – use with total peace of mind. Flame-retardant ABS plastic housing resists high temperatures and impact; Plug Size: 5.5mm 2.1mm 4.9ft (1.5m) extra-long power cord fits most setups (stage performances, home practice, studio sessions). The connector fits snugly into device ports for smooth plug-and-play use without loose connections.
• Plug-and-Play: Easy to Use & Portable​ No complicated setup required – just plug the adapter into your device’s power port and go! No need for polarity converters. Compact size (2.17×1.46×1.02 inches) and lightweight design make it easy to store and carry. Ideal for musicians on the go, students, and hobbyists – fits in gig bags, backpacks, or gear cases without taking up extra space.
• Quality Guaranteed: Long-Lasting & Risk-Free Purchase​ Rigorously tested for reliability and durability – outperforms generic adapters and works as a direct replacement for OEM AD-5, AD-5MU, and BOSS-compatible power supplies. Backed by a 12-month warranty and 30-day money-back guarantee. If you have compatibility issues or quality concerns, our customer support team is ready to help – zero-risk shopping!