CONVERTER OUTPUT COMPATIBILITY: Dell XPS, Dell Inspiron, Dell Latitude - 4.5x3.0mm pin adapter; Dongle P/N 331-9319 57J49 D5G6M 0D5G6M. CONVERTER INPUT COMPATIBILITY: Dell Latitude, Dell Inspiron, Dell XPS, Dell Vostro, Dell Precision, Dell Studio, Alienware - 7.4x5.0mm pin adapter. SAFETY: Light-Weight and Solid Constructed Plastic from Stain and Warm Resistant Materials. Pwr+ chargers and cords manufactured with the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating. CE/FCC/RoHS certified. WARRANTY: 30 Days Refund - 24 Months Exchange. PWR+ is WA, USA based company. We are friendly Customer Support Experts. FEATURES / POWER SPECS : PWR+ Adapter Converts Any Laptop Charger with 7.4x5.0mm Connector to 4.5x3.0mm Type.