CE FCC UKCA PSE KFD products are 30 days certified. KFD product is made from high quality materials. It has overload, over-voltage, overheating and over-current protection. 100% compatible with OEM parts.Input(input): DC12V-24V Compatible with 9V-32V 12A MAX; Output (ouputDC): 18.5-20V max 100W for most laptops, laptops, tablets, netbooks, ultrabooks ¿ Please pay attention to the output voltage, output current and plug size of your power supply.14 x DC connectors e.g. K1 7.9 x 5.5 mm for Lenovo / K2H 7.4 x 5.0 mm for HP / K3 6.5 x 4.4 mm for Sony LG Samsung / K4 5.5 x 3 0mm for Samsung / K5 -- 5.5 x 2.5mm for Lenovo Toshiba Asus MSI / K6 -- 5.5 x 1.7mm for Acer / K9D -- 4.5 x 3mm for Dell / K10H -- 4.5 x 3.0 mm in for HP / KK. 11 -- 4 x 1.35 mm for Asus / K12 mm -- 4 x 1.7 mm for Dell HP Lenovo Toshiba / K13 - 3 x 1 mm for Acer Asus Lenovo Samsung / K15D - 7.4 x 5 mm for Dell / K16 USB type Lenovo / K17 - 4.8 x 1.7 mm for HP VIZIO.Line length: 2.6 m; 14 DC connectors e.g. K1 - 7.9 x 5.5 mm for Lenovo / K2H - 7.4 x 5 mm for HP / K3 - 6.5 x 4.4 mm for Sony LG Samsung / K4 - 5.5 x 3 0mm for Samsung / K5 -- 5.5 x 2.5mm for Lenovo Toshiba Asus MSI / K6 -- 5.5 x 1.7mm for Acer / K9D -- 4.5 x 3mm for Dell / K10H -- 4.5 x 3.0 mm in for HP / KK. 11 -- 4 x 1.35 mm for Asus / K12 mm -- 4 x 1.7 mm for Dell HP Lenovo Toshiba / K13 - 3 x 1 mm for Acer Asus Lenovo Samsung / K15D - 7.4 x 5 mm for Dell / K16 USB type Lenovo / K17 - 4.8 x 1.7 mm for HP VIZIO.Replacement for Lenovo G50-70M G40-70M B50-70 B50-30 B4130 B41-30 G50-80 G50-30 S20-30 Y50-70 G50-75 G50-45 ThinkPad Yoga S1 S3 S3 S20 5N2 0N20P P40 P50S P51S PA-1650-72FN T400 T431S T440 T440P T450 T450S T460 T460S T470 T470S T540P T550 T560 U 330P V510 X1 X230S X240 X240S X250 X260 Z40-70 Z50 Z50-70 Z50-75 Z51 Z70 Z70-80 Z710 B50 Edge E431 E433 1 55 E4 40 E540 E550 E555 E560 E450 E465 E470 U330 U430 U530 Z410 Z710 G500 G500S G505 G505S G510 G70000000 0, Acer Aspire 5 920 G 5930 5741G 5741ZG 5742G 5742Z 5745PG