MacBook Air 13-inch, Mid 2013. 1.3 GHz Dual-Core Intel Core I5. 4GB 1600 MHz DDR3. 128 GB SSD. Model A1466. I bought this in 2013, and it has always worked fine, but it's ready for a new battery (see the screenshots, which for some reason turned out tinted gold-ish, but trust me, the machine is silver). Running MacOS 11.7.2 Big Sur (final release for this machine).

Includes MacBook Air and 45W power supply. Also ethernet adaptor, and VGA and DVI display adaptors.

https://everymac.com/systems/apple/macbook-air/specs/macbook-air-core-i5-1.3-13-mid-2013-specs.html