TAIFU AC Adapter for Acer Chromebook 11 13 14 15 CB3-111 CB5-311 CB5-571 C720 C720p C740, Acer Aspire One Cloudbook AO1-131, AO1-431 Laptop, Aspire S7, P3, S5, S7-392, S7-391, Acer Switch 12 SW5-271 This laptop power supply is for Acer Chromebook C720, C720p, Cb3, Cb5; C720-2800, C720-2848, C720-2802, C720p-2600, C720-2844, C720p-2625, C720-2420, C720p-2666, C720-2827, C720p-2834, C720p-2661 Service & Support: 30 Days Money Back Guarantee and one year warranty / Please contact us with any questions or concerns - we are here to help TAIFU products are CE/FCC/RoHS certified, tested by manufacturer to match and/or exceed specifications of OEM products The power brick also charges Acer Aspire P3 P3-131 R14 R5-471T S7 S7-191 S7-391 S7-392;acer Iconia Tab W7 W710 Tablet PC; acer Switch 11 (SW5-171), Switch 12 (SW5-271), V3-331, V3-371 NOT for C7 C710 Series