[UL LISTED]KFD AC Adapter for Asus X551 X550 X552 X551CA X551MA X551MAV X401A Flip Q300 Q301 Q400 Q501 R503U R554L S300 S400 S500 S550 S551 V500C V551 Transformer Book TP500 F555 F555L F555LA F555UA KFD products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications Warranty: 30 Days Free Exchange /36 Months Warranty; This adapters was made with the highest quality materials.V-0 grade flame retardant,OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)100% compatibility with the original,more safety than other adapter Input: 100-240V 50-60Hz Output:19V 1.75A-2.37A 45W Connector size:See picture-- Please confirm the specifications and plug size before purchasing!If you can't make sure,pls feel free to contact us Compatibility:ASUS X551 Series X551MA X551MAV, F555L X551C X551CA F551M AD883J20 010KLF,AD883520 010FLF,AD883220 010KLF BAH,AD883020 010K-1LF BAH For Asus x451ma x551ma x551ca d550 d550c d550ma f551c. !!!!!Not fit x553m x553ma x540sa!!!!!