BA92~10887A BA92~10755A.For Samsung NP300E4C 300E4C NP300E4X NP300E43 Laptop . HM70 HM75 GT620M 100% test work

HM70 can only Intel CPU

HM75 can I3 I5 CPU

Dear buyers, please consult the following before placing an order.Our company is in Shenzhen, China. We are a profeional manufacturer of laptop s. Our company sells various notebook s.Profeional s Samsung DELL HP Toshiba Lenovo ASUS MSI Blue Sky and other notebook s1 Before placing an order, first check if your notebook is damaged on the (board) and check if other acceories are damaged together.e sure the board is damaged by the problem at the time of purchase.2 Before placing an order, please check if the product you need is consistent with the descrtion of our product ture, to ensure that it is consistent in the purchase / if the subsequent product is found to be inconsistent with the actual requirements, the buyer must bear the freight.3 Thank you for your trust and support for our products. Before we sent the products, each product has paed various functional test/sound/3D graphics /CPU tests./RAM test / battery charging test / network test. And other functions.4 About Warranty Our products are provided with a 90-day free warranty. If damaged during , you can contact us to send back the warranty.