This is a USED NEC PC-MK29AAZCC desktop computer. It features an Intel Core 2 Duo E7500 (2.93GHz) CPU. The OS is the latest version of Windows 10 Pro 64-bit. Updates are up to date. System and Overview ✅ Model Number: PC-MK29AAZCC ✅ OS: Windows 10 Pro 64-bit ✅ CPU: Intel Core 2 Duo E7500 (2.93GHz) ✅ Memory: 4GB (Expandable to a maximum of 8GB) ✅ Storage: HDD 1000GB Health status is normal according to CrystalDiskInfo. ✅ Optical Drive: DVD (Opening/closing and reading confirmed) ✅ USB Input/Output Ports: USB (1 port on the front is damaged) ✅ Recovery Discs etc.: None (You can create a backup using the OS's standard function) ✅ Core Seal: Windows 10 Digital Authentication Operation is problem-free, including internet connection. It can still be used. The above has been confirmed, but because this product has very complex functions, there may be other defects, oversights, or unexpected problems, so we will treat it as junk for safety's sake. The exterior has scratches and scuffs, but the overall condition is good and clean. The interior is clean. The usage environment is non-smoking, so there are no unpleasant odors. What will be delivered is the main unit and the power cord. If you are interested, please consider it.