Power specsAC input:100-240V 50-60Hz, DC output:19.5V 9.23A, Power:180W(Compatible with 19V 7.1A 135W) ,DC Plug Size: 5.5 mmx1.7mm(NOT for laptops requesting 19.5V 11.8A 230W or 19.5V 16.9A 330W). Compatible M/NADP-180MB KNOT FOR MSI. Compatible ModelFor Acer Predator Helios 300 G3-573 AN515-52 PH315 N1812 Nitro5 N20C1 N17C1 N1TC1 V17 VN7-793 PT515-51 G900-757W( Not fit: Acer Predator 17 G9-792 G9-791 Acer Predator 15 G9-592 G9-591 ). For Acer Aspire Nitro 5 (Nitro V) AN515-41 AN515-42 AN515-42-R5GT AN515-51 AN515-53,Acer Predator Helios 300 G3-571 G3-571-77QK G3-571-51NK. Package includes1 x 19.5V 9.23A 180W power adapter/charger, 1 x plug power cord.