KEFU X505ZA Mainboard For ASUS X505Z A580Z A505Z K550A Laptop Motherboard W/R3-2300U R5-2500U R7-2700U 4GB/8GB-RAM 100% Working KEFU X505ZA Mainboard For ASUS X505Z A580Z A505Z K550A Laptop Motherboard W/R3-2300U R5-2500U R7-2700U 4GB/8GB-RAM 100% Working. Sale price : $134.90 Category : Computer & Office