Please purchase this item after carefully reviewing the description and photos, as it is in poor condition. Please ask if you have any questions. ・Purchase date: 2012/4 ・Defects: As detailed in the operation check below, a USB hub is required for external connection of a mouse and keyboard, as shown in the photos. (The mouse, keyboard, and USB hub in the photos are not included; please prepare them yourself.) ・Appearance: Overall signs of use, marks from a sticker that was attached to the back for a long time, and one of the four resin pads is peeling off. ＜Operation Check＞ ・Wi-Fi: OK ・Keyboard: NG (usable with an external keyboard) However, some keys like the power button, Enter, and Tab work, and it is possible to turn the power ON. ・Left/Right Click: NG (usable with an external mouse) ・Keypad: Mouse cursor movement and left-clicking by touch are possible, but the left and right clicks at the bottom (red frame in the photo) are not usable. ・Camera: NG ・Speakers: OK ・Headphone Jack: OK ・USB: There are two USB ports, one on each side. The right one works, but the left one does not respond. Therefore, a hub is required for multiple connections. ・HDMI (mini) port: OK ・Charging port: OK ・Battery: When fully charged, it shows approximately 4 hours remaining (this does not guarantee that it will actually run for 4 hours). ＜Product Description＞ 【Main Unit】 ASUS ZENBOOK UX31ERY256 Features a unibody design with a hairline finish that takes advantage of the aluminum texture. 【Accessories】 ・Genuine AC adapter ・Genuine main unit case (with signs of use) ・Two adapters included with the main unit (① Modular jack/USB conversion, ② VGA/mini VGA conversion) ＜Specifications＞ ・OS: Windows 10 Home Version 22H2 ・Product size: ‎22.3 x 32.5 x 3 cm; 1.3 kg ・Display size: ‎13.3 inches ・Resolution: ‎1,600 x 900 ・CPU type: Intel Core i5-2557M ‎1.7GHz ・RAM capacity: 4 GB ・SSD capacity: ‎256GB ・Graphics accelerator: ‎Intel HD Graphics 3000 (integrated CPU) ・Audio: Built-in 2 speakers, built-in digital microphone (compliant with Intel High Definition Audio)