Lenovo Authenticity Sealed Slim Design 135w Slim Tip AC Adapter , 4x20q88539 Ripple voltage shall be less than 350mV (peak to peak).temperature at 25 deg C? Includes Power Cord. Slim Tip Cord: 6 FT.(L), Power Cord 3 FT ( L). Compatible with P1 2nd Gen, P1-20MD ,P1-20ME, ThinkPad P1 3rd Gen, ThinkPad P15v-20TQ , ThinkPad P15v-20TR , ThinkPad T15p-20TM , ThinkPad T15p-20TN , X1 Extreme 1st Gen , X1 Extreme 2nd Gen , X1 Extreme 3rd Gen Dimensions:118*77*21mm / 4.65*3.03*0.83 in , Weight: 431.8 g , Power Capacity: 2.5 A/250 V, 135W Output; 20V~6.75A 135W, Input Power 100-240 V 2.5A 50-60 HZ