ELECOM AC adapter, maximum output 75W, 19V output, circular connector. Operation confirmed. - Brand: ELECOM - Model: SE752 - AC Input: 100V-240V 2.0A 50-60Hz - DC Output: 19V 3.94A - Maximum Output: 75W - Connector Shape: Circular Matching voltage (V) is a mandatory requirement. Amperage (A) and wattage (W) are not a problem if they are equal to or greater than the PC's required values. 【Example of compatible models (reference)】 ・Toshiba laptops (e.g., dynabook series) ・Fujitsu laptops (e.g., Lifebook series) ・NEC laptops (e.g., LaVie series, some models) ・HP / Dell / Acer / ASUS 19V models with round ports ・Other 19V / ~75W laptops with circular connectors ※The above are reference examples based on output and connector shape. Please be sure to check the manufacturer's official information to confirm that the "output voltage," "required wattage," and "connector shape" match, and purchase at your own risk. ※Returns due to differences in connector shape will not be accepted. ※This is a used item, so there may be some scratches, etc., due to use. Please purchase if you understand this. Thank you for viewing.