Exchange with someone's old laptop is accepted, or you can come and check and buy as much as you want beside Rajshahi Cantonment. I brought two brand new ones from AliExpress, will sell one and keep the other. I bought one for 52 dollars, completely original product, message if you want to take it, calling might not receive unknown numbers sometimes. Courier is not possible, and if absolutely necessary, courier charge must be taken in advance, though it is best to take it face to face