GPK Systems&reg; 40W Ac Adapter for Acer Aspire V5-121-C72G32nkk V5-121-C74G50nkk V5-121-C74G50nbb V5-121-C72G32nbb V5-122P-42154G50nss V5-122P-42156G50nss V5-122P-61454G50nSS V5-122P-61456G50nss V5-121 Series V5-121-0430 V5-121-0452 V5-121-0678 V5-121-0818 V5-122P Series V5-122P-0408 V5-122P-0467 V5-122P-0468 V5-122P-0600 V5-122P-0607 V5-122P-0637 V5-122P-0643 V5-122P-0857 V5-122P-0863 V5-122P-0864 Input: 100 - 240 V (worldwide use) Output: 19V 2.1A 40Watt Connector size: 5.5mm X 1.7mm Service & Support 1 year warranty CE/FCC/RoHS certified