The product is a brand new motherboard specifically designed for Asus Zenfone 5z ZS620KL and ZS621KL models with 6GB of RAM and 128GB of storage capacity. Made by ASUS, known for producing high-quality computer components, this motherboard is a reliable and essential part for maintaining the functionality of the phone. Perfect for those looking to replace a damaged or faulty motherboard in their Asus Zenfone 5z device, this genuine ASUS product ensures compatibility and optimal performance. Please write for more details.