On June 5, 2017, Apple discreetly updated the MacBook Air "Core i5" 1.6 13" (Early 2015) with a slightly faster 14-nm "Broadwell ULT" 1.8 GHz Intel "Core i5" processor (5350U). Otherwise, this model is identical to the later configurations of its predecessor, aside from some identifiers.
The Apple MacBook Air "Core i5" 1.8 13-Inch (2017/Broadwell) is powered by a 14-nm "Broadwell ULT" 1.8 GHz Intel "Core i5" processor (5350U) with two independent processor "cores" on a single chip, a 3 MB shared level 3 cache, 8 GB of onboard 1600 MHz LPDDR3 SDRAM, 128 GB or 256 GB of 4-Lane PCIe-based flash storage (with the 256 GB option discontinued as a standard configuration on October 30, 2018, though later offered as a custom option), and an "integrated" Intel HD Graphics 6000 processor that shares system memory.
This is all housed in a slim (0.11-0.68 inch), 2.96-pound aluminum case with an integrated 720p "FaceTime HD" webcam, a backlit full-size keyboard, and a 13.3-inch widescreen TFT LED-backlit active-matrix "glossy" display (1440x900 native resolution).
Connectivity includes 802.11ac Wi-Fi, Bluetooth 4.0, analog audio out, a single "Thunderbolt" 2 port, two USB 3.0 ports, and an SDXC-capable SD card slot.