iTEKIRO AC Adapter for Asus D553SA D553MA F200MA F556UA K553MA K556UA K556UQ L402MA L402SA L403SA Q405UA Q505UA R518UA R540LA R540SA R541UA X200CA X200MA X441SA X441UA X540LA X540SA X541NA X541UA iTEKIRO AC Adapter for Asus D553SA D553MA F200MA F556UA K553MA K556UA K556UQ L402MA L402SA L403SA Q405UA Q505UA R518UA R540LA R540SA R541UA X200CA X200MA X441SA X441UA X540LA X540SA X541NA X541UA The 90 degree elbow (L-shaped) DC connector is better than straight tip to protect your laptop power jack and the adapter itself from damage Mobility: the adapter includes a 6 feet extra long 2-prong AC power cord, you can reach more space with ease Durability & Reliability: Ruggedized case withstands harshest mobile environments and tight sealing for protection against moisture and high humidity; Comprehensive internal safety features filter input line voltage spikes or surges and limit output voltage or current to protect your laptop from electrical hazards; high power efficiency provides consistent and continuous power for your laptop Satisfaction: Money back guarantee plus 1 year trouble-free replacement warranty