Backlight measures have been taken. The backlight cable has been extended, so the problem of the backlight turning off due to a configuration defect will not occur. For an additional 5,000 yen on top of the winning bid, Windows 11 Pro can be installed via Bootcamp. For an additional 10,000 yen on top of the winning bid, Windows 11 Pro can also be installed using the paid virtual machine software "Parallels Desktop 20". For an additional 5,000 yen on top of the winning bid, Mac version of Office can be installed. An Office account and password will be provided. Furthermore, if you make an immediate purchase without negotiating a price reduction, we will install Office for free. For an additional 5,000 yen on top of the winning bid, Windows version of Office can be installed. ※ Product Description ※ Manufacturer: Apple Product Name (Model Number): MacBook Pro Retina [A1706 Thunderbolt 3 port x 4] CPU: Core i7-7567U 3.50-4.00 GHz (2 cores / 4 threads) Memory: 8GB (8192MB) Storage (SSD): Ultra-fast PCI-e SSD 256GB 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 Touch Bar) OS System: Catalina 10.15.7 / Windows 11 Pro ●Included Items AC adapter, charging cable, built-in battery, instruction manuals, box ※ Some of the included items may not be genuine products. ■Product Condition Extremely good condition! The LCD has no scratches and the color is beautiful. The keyboard and palm rest are also in beautiful condition, with no fading of the characters. The top cover and bottom are generally clean. There are no noticeable scratches. The battery has been charged and discharged 88 times. The initial password is 1234. ※ Important Notes We will accept returns or exchanges for malfunctions such as failure to power on or start up. Other than that, we cannot accept returns for reasons related to the product condition, so please refrain from purchasing if you are particular about the product condition.