Compatibility: Compatible with the following 65w and 90w DualCore ThinkPad Models with Integrated Graphics: ThinkPad 20AQ, L440, L450, L460, L540, L560, P50s, T440, T440p, T440s, T450, T450s, T460, T460p, T460s, T540p, T550, W550s, X240, X250, X260.
NOT recommended if the system AC adapter is 170W.
Front Panel LEDs: 16 power availability LEDs confirm power off / on status for each built-in outlet; Two additional LEDs identify which bank the visual current meter is reporting (Bank 1, Bank 2 or Banks 1&2 combined)
Certifications: Tested to UL 60950-1 (USA, Canada), Class A (Emissions), NOM (Mexico), TAA Compliant