The MacBook Air 13-inch (Mid-2013) featured a “Haswell” 1.3 GHz Intel Core i5 processor (with two processors a single chip), 4 or 8 GB of RAM, and 128 or 256 GB of flash storage. This laptop has 8 GB of RAM and a third-party upgrade to 512 GB of flash storage from OWC. Ports included analog audio out, a Thunderbolt port, two USB 3.0 ports, and one SD (SDXC) card slot. Wireless connectivity included 802.11ac Wi-Fi and Bluetooth 4.0.
The MacBook Air is known for its thin case that tapers between 0.11 to 0.68 inches. It weighs 2.96 pounds. The screen is a 13.3 widescreen TFT glossy display at 1440×900.
Source: EveryMac.com