Power sockets for Acer Aspire laptops 3820T, 3820TG, 3830T, 3830TG, 4830T, 4830TG, 5820T, 5820TG, 4250, 4339, 4349, 4739, 4739Z, 4749, 4749Z, 5250, 5251, 5252, 5253, 5333, 5336, 5340, 5349, 5534, 5538, 5538G, 5551, 5551G, 5552, 5552G, 5560, 5560G, 5733, 5733Z, 5736, 5736G, 5736Z, 5741, 5741G, 5741Z, 5742, 5742G, 5742Z, 5749, 5749Z, 5750, 5750G, 5750Z, 5755, 5755G, 7250, 7250G, 7739, 7739G, 7739Z, 7739ZG, 8920, 8920G, 8930, 8930G, 7741, 7741Z, 7551, 7551G, 7552, 7552G, 4741, 4741G, 5943, 5943G and Gateway series NV50A, NV51B, NV53A, NV55C, NV59C, NV79C.