This is a Lifebook A550/A with a Core i5 processor. The Wi-Fi is working fine. The keyboard input is also mostly normal. The monitor screen has no noticeable scratches and displays a normal image. However, the SSD will be removed before shipping, so please prepare your own SSD and install your preferred OS. I disassembled the unit and cleaned it thoroughly. I applied new thermal paste to the CPU. The CMOS battery has been replaced with a new one. The memory is 4GB, but it runs smoothly even with Windows 11 Home. The secret is that I have thoroughly removed unnecessary components from Windows that put extra load on the system. There are many tips on YouTube on how to operate low-speed PCs at high speed like this. You will receive the main unit and the AC adapter. The built-in battery is not expected to hold a charge.