Refurbished Apple MacBook Air 13-Inch.
Intel Core I5 1.7Ghz dual core, Turbo Boost 2.7Ghz
Intel HD Graphics 3000
4GB of 1333MHz DDR3 onboard memory
128GB SSD Flash storage
OS X High Sierra
13.3-inch (diagonal) LED-backlit display; 1440-by-900 native resolution
Two USB 2.0
SD Card Slot SDXC
802.11n (802.11a/b/g capable as well) Wi-Fi
Bluetooth 4.0 standard
Thunderbolt port. It is backwards-compatible with Mini DisplayPort-equipped displays as well as adapters that are compatible with Mini DisplayPort (DVI, VGA, dual-link DVI and HDMI). It also can support other peripherals that use the Thunderbolt standard, which provides a maximum theoretical 10 Gbps of bandwidth in both directions.
FaceTime Video camera
64 (U.S.) keys including 4 arrow keys
Touch trackpad, Multi-Touch gestures