** Warranty**~ Tested, restored and sanitized by professional technicians before shipment. AMAZING deal from a Reputable vendor.* Apple MacBook Air Core i5-4250U Dual-Core 1.3GHz 13.3" LED Notebook Mac OS X version BIG SUR pre-installed - Unit comes with Mac OS X 2020 ( Big Sur) and can be downgraded to older versions upon request Intel Core i5-4250U Dual-Core 1.3GHz processor 2.6 GHz Max Turbo Frequency, 3 MB Intel Smart Cache Airport Extreme 802.11ac Wi-Fi networking (IEEE 802.11a/b/g/n compatible) Built-in Bluetooth 4.0 wireless Technology 13.3-inch LED-backlit glossy widescreen display (1440 x 900 resolution) 0.11 - 0.68 x 12.8 x 8.94-inches (H x W x D, approximate) Power adapter (Input: 100-240V, 50/60Hz, Output: 14.85V, 3.05A) Notes: Great condition, some units may come with a very