STK's Acer Battery Charger AC Adapter - for Acer Aspire 5517, 5515, 5750, 5253, 4730z, 5534, 6930, 7741z, 5336, 5750g, 7551, 5516, 5733z, 5920, 7750g, 5735z, 5810tz, 5000, 5560, 5740, 3690, 5736z, 6530, 7741, 5334, 5551, 5735, 7540, 7736z, 5750z, 7750, 5630, 7740, 5670, 5738, 5570, 7739z, 4250, 9500 [THIS STK PRODUCT HAS 1 YEAR 100% CUSTOMER SATISFACTION GUARANTEE - SterlingTek is only Amazon authorized seller] STK's 90W AC adapter can safely be used with both 65W or 90W Acer laptops,because your laptop only uses the amount of power it needs.You can safely use this adapter with both 65V or 90V Gateway notebooks, because your notebook only uses the amount of power it needs. Part #: PA-1900-05; Input: 100-240VAC 2A; Output: 19V 4.74A 90W; Total length of adapter + power cable is 9 feet. Power cable has two prong plug. CE, FCC, and RoHS Safety Certifications.