If you're not planning on using the humidifier with your S9 CPAP Machine, this 30-Watt External Power Supply is all you need to keep your S9 Machine running. If you want to run the humidifier, you'll need to purchase the 90-Watt Power Supply for S9, as the 30-Watt power supply sold here doesn't have the required wattage to power both devices.
Your purchase includes four (4) different adapters to plug into the wall outlet to work in the United States and abroad. This power supply is also smaller and lighter than the 90 Watt version used to power both the machine and humidifier.
What's Included:
What’s Included: