Guarantee: We support 30 days money back guarantee and exchange in 12 Months if you are unsatisfied with our product.If anything unusual happens or you have some doubt,please feel free to tell me and I will very glad to help you. 24 x 7 Email Support. LNOCCIY INC specialized in Laptop Accessories including Laptop Batteries, Adapters and other Electronics.Our products are manufactured with the highest quality materials and Grade A cells to ensure fast charges and low power consumption,built-in circuit protection ensures both safety and stability. Compatible for Dell Latitude E7450 E6410 E6430 E7470 E7240 E6420 E6530 E6400 E6440 E7440 E5430 E5450 E4310 3160 3450 3540 3550 3340 E6220 E6320 E6230. This adapter fits for Dell Inspiron 11 11Z-1121 1320 13Z-5323 14-3420 1440 14R-5421 14Z-5423 15-3520 15-3521 15- 7537 15R-5520 15R-5537 17 17-3721 5425 M4110 M421R PA-10 PA-12 HA65NS5-00 HA65NS-00 LA65NS1-00 LA65NS2-01 DA65NM111-00 LA65NE1-00 FA65NE1-00 PA-1650-02DD PA-1650-05D PA-1650-05D2 PA-2E. Output:DC 19.5V 3.34A 65W; Input:AC 100-240V 1.5A 50-60Hz; Prongs:3-Prong; Connector Size:7.4*5.0mm(With pin inside) ; Package:1x Ac adapter and 1x Ac power cable; LNOCCIY has registered a U.S. Trademark and the serial number is 87765902.