[The Best Partner for Predator]- This Predator adapter has an output power of 19.5V 9.23A 180W. The plug size is 5.5*1.7mm. It is perfectly compatible with Acer 180W charger ADP-180MB K, ADP-180TB F. It works with most Acer Predator Helios 300, Acer Predator Triton 300, Acer Nitro 5, Acer Nitro 7 gaming laptops. As long as your original Acer 180W power supply model is ADP-180MB K or ADP-180TB F, then you can use this Acer 180W AC adapter. [Do not buy if your laptop more than 180W]- It is suitable for Acer gaming laptops with 180W of power. Such as Acer Predator Helios, Acer Predator Triton and Acer Nitro 5 7 gaming laptops, etc. Compatible with Acer Predator Helios 300 G3-571 G3-572 PH315 PH317; Predator Triton 300 PT314 PT315; Predator Triton 500 PT515; Nitro 5 7 AN515-45 AN515-57; AN517-41 AN517-52 AN517-54 AN517-55 AN715-52-715S Laptops.