This is an enclosure that allows you to use a MacBook Air 2011/2010 model SSD as an external USB 3.0/2.0 drive. A screwdriver for opening the MBA is included. ・Compatible SSD: MacBook Air 2011/2010 MacBook Air specific SSD ・Interface: USB3.0 (Micro-B port) / 1 port ・Power: USB bus power ・Cooling: Fanless design ・Dimensions (WxDxH): Width 45.47mm x Depth 149.86mm x Height 7.09-11.84mm ・Weight (excluding SSD): Approximately 42.53g Used only once over 10 years ago. Currently, I am unable to confirm its operation. There is no outer box. Regarding the screwdriver, it was used on the 2010 model, but it is unknown whether it can be applied to other models. Please consider this with the above in mind. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I am sorry, but please refrain from price negotiations. I will also use recycled cardboard boxes from supermarkets for packaging. I will do my best to ship within 24 hours. Please let me know if you have any preferred delivery date and time. Thank you for your understanding. Thank you very much.