The Casio 9.5V 1A (FYWS) AC Adaptor is a regulated switching power supply designed for a wide range of Casio electronic keyboards and musical instruments. It provides stable DC output, ensuring safe operation and consistent performance during practice, recording, and live use.
This adaptor is commonly used as a replacement or original-style power supply for beginner and arranger Casio keyboards that require 9.5V DC input.
Key Specifications (Verified Data)
Input Voltage: AC 100–240V ~ 50/60Hz (Universal input)
Output Voltage: DC 9.5V ⎓
Output Current: 1A (1000mA)
Output Power: Approx. 9.5W
Polarity: Center Positive (+) (standard for Casio keyboards)
Type: SMPS (Switch Mode Power Supply)
Connector: Barrel plug (commonly ~4.8mm outer / 1.7mm inner, model-dependent)
Efficiency: High-efficiency regulated output
Protection: Over-voltage, over-current, short-circuit protection
Build: Lightweight molded plastic body
Cable Length: Medium–long reach (varies by manufacturer batch)
Compatibility (Important – Verified Range)
This 9.5V 1A adaptor is widely compatible with many Casio keyboards including:
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Casio CT-S series (CT-S1, CT-S100, CT-S200, CT-S300, CT-S400)
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Casio CTK series (CTK-240, CTK-2550, CTK-3200, etc.)
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Casio SA series (SA-46, SA-47, SA-76, SA-77, SA-78)
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Selected WK series models
