19v 4.74a 90w 5.5x1.7mm Laptop Ac Adapter Charger For Acer Aspire 5750g 5755g 7110 9300 4710g 4720g 4730 Notebook Power Supply - Laptop Adapter - AliExpress
Amazon.co.jp: Acer Aspire Acer Aspire 5749 5750 5755 5810 5820 5920 5935 Laptop AC Adapter Compatible for Adapter Power Supply Cable for Laptop, PC, Cord Charger Power Supply Power Adapter Power Supply
19V 90W Ac Power Adapter For Acer Aspire 5750 5750G 5755 5755G 6920 6920G 6930G | eBay