SpecificationsInput: 100-240V 50-60Hz (for worldwide use), Output: 20V 8.5A, Power: 170W, DC
pin size: 7.9 * 5.5 mm, pls make sure the output and DC pin sizes is suitable before you purchase, if you cant make sure, ps feel free to contact with us. ^^Replace Part Number45N0113 45N0114^^Compatible modelsThinkPad W520 W530^^AdvantagesHigh quality New laptop ac adapter power supply with US power cord for free, 100% compatible. ^^International safety featuresOur adapter is made with the high quality standard 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), UL, CE, FCC, ROHS certificate, 100% test before delivery.