Winning bid + ¥5,000: Windows 11 Pro can be installed via Bootcamp. Winning bid + ¥10,000: Windows 11 Pro can also be installed using the paid virtual machine software "Parallels Desktop 20". Winning bid + ¥5,000: Mac version of Office can be installed. Office account and password will be provided. If you make an immediate purchase without price negotiation, Office will be installed for free. Winning bid + ¥5,000: Windows version of Office can be installed. +¥5,000: SSD upgrade to 512GB! +¥10,000: SSD upgrade to 1TB! +¥20,000: SSD upgrade to 2TB! ※ Product Description ※ Manufacturer: Apple Product Name (Model Number): MacBook IrisPro Retina [A1502] CPU: Core i5-5257U 2.70-3.10 GHz (2 cores / 4 threads) Memory: 8GB (8192MB) Storage (SSD): Ultra-fast PCI-e NVME SSD 128GB Optical Drive: None Screen Size: Retina display 13.3-inch wide Resolution: 2,560x1,600 dots Wireless LAN: Built-in wireless LAN Keyboard: Japanese layout (with backlight) OS System: Catalina 10.15.7 / Windows 11 Pro 64bit ● Included Accessories AC adapter, built-in battery * Some accessories may not be genuine. ■ Product Condition Extremely good condition! The LCD has no scratches, and there is no coating peeling. The keyboard and palm rest are in beautiful condition, with no fading of the characters. There are slight scratches on the top cover and bottom cover. The battery charge/discharge cycle count is 61. The initial password is 1234. ※ Notes We will accept returns or exchanges for defects that prevent power-on or startup. Other than that, we cannot accept returns for reasons related to the product condition, so please refrain from purchasing if you are concerned about the product condition.