Refurbished Apple MacBook Air 6,1/i5-4250U/4GB RAM/1TB SSD/11"/B (Mid-2013)

The Apple MacBook Air "Core i5" 1.3 11-Inch (Mid-2013/Haswell) features a 22-nm "Haswell" 1.3 GHz Intel "Core i5" processor (4250U) with two independent processor "cores" on a single chip, a 3 MB shared level 3 cache, and an "integrated" Intel HD Graphics 5000 graphics processor that shares system memory.

This all is packed in a razor thin (0.11-0.68 inch), 2.3 pound, aluminum case with an integrated 720p "FaceTime HD" webcam, a backlit full-size keyboard and an 11.6" widescreen TFT LED backlit active-matrix "glossy" display (1366x768 native resolution).

Connectivity includes 802.11ac Wi-Fi, Bluetooth 4.0, analog audio out, a "Thunderbolt" port, and two USB 3.0 ports.
Compared to its predecessor, this model has effectively the same external enclosure, but it has a much more efficient processor and architecture -- which results in significantly improved battery life -- as well as faster graphics (that reserve more system memory), faster storage, and faster Wi-Fi.