This is an 18V fixed-voltage power supply designed to meet the exact power specifications of your Alesis MultiMix 8 USB FX (18V, standard tip) mixer. Please note: this adapter is compatible with the Alesis MultiMix 8 USB FX mixer that requires 18V and a standard barrel connector, not the 3-pin version. Please verify the power input requirements on your mixer before purchasing. Specifications: - Output voltage: 18V - Maximum output current suitable for your device - Correct tip size and polarity for reliable connection - Thoroughly tested for performance and compatibility - 2-pin plug for use with US (Type A) wall outlets - Input voltage: 100-120V AC, 50/60Hz This replacement power supply for the Alesis MultiMix 8 USB FX (18V, standard tip) mixer is: - Fully compliant with applicable safety standards - Equipped with overvoltage, overcurrent, and short-circuit protection to help safeguard your device - Energy Star Level 6 certified for improved energy efficiency - RoHS and CE certified - Backed by a 2-year warranty: if the adapter fails within 2 years of purchase, it will be replaced