Compatibility: 9V 1A switching DC power cord 9W max universal power adapter, works for the extensive electronic devices which fits for less than 9v power supply, such as 9V 1A, 0.9A, 0.8A, 0.7A, 0.6A, 0.5A, 0.4A, 0.3A, 0.2A, 0.1A transformer 9v charger. Our charger is only fits for the output dc 9V Max 1A devices. If your device's output voltage and current are not 9v and exceed 1A, then our charger cannot be adapted for use. Please verify your devices before order Specification: Input: AC 100V-240Volt 50-60HZ Output: DC 9V Max 1A (1000mA), Plug Polarity: positive inside negative outside; Plug Size: 5.5mm 2.5mm (applicable 2.1mm) standand wall plug, 4.9 FT extra long enough power cord, 10 Interchangeable Jacks, 9v ac adapter power cordto dc charger, regulated dc 9.0v power cord, which can be extensive compatible with most of your 9v adapter power supply input devices 10 Interchangeable DC Jacks: Selected 10pcs various connectors which can be used for most of your 9V 1A DC ele