Apple MacBook Air 11-inch Early 2015 [Grade A] Display 11.6-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors Supported resolutions: 1366 by 768 (native), 1344 by 756, and 1280 by 720 pixels at 16:9 aspect ratio; 1152 by 720 and 1024 by 640 pixels at 16:10 aspect ratio; 1024 by 768 and 800 by 600 pixels at 4:3 aspect ratio Storage 128GB 128GB PCIe-based flash storage Processor 1.6GHz dual-core Intel Core i5 (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache Memory 4GB of 1600MHz LPDDR3 onboard memory Battery and Power  Up to 9 hours wireless web Up to 10 hours iTunes movie playback Up to 30 days standby time Built‑in 38‑watt‑hour lithium‑polymer battery 45W MagSafe 2 Power Adapter with cable management; MagSafe 2 power port Size and Weight Height: 0.11-0.68 inch (0.3-1.7 cm) Width: 11.8 inches (30 cm) Depth: 7.56 inches (19.2 cm) Weight: 2.38 pounds (1.08 kg)3 Graphics and Video Support Intel HD Graphics 6000 Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on an external display, both at millions of colors Thunderbolt digital video output Native Mini DisplayPort output DVI output using Mini DisplayPort to DVI Adapter (sold separately) VGA output using Mini DisplayPort to VGA Adapter (sold separately) Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately) HDMI audio and video output using third-party Mini DisplayPort to HDMI Adapter (sold separately) Camera 720p FaceTime HD camera Charging and Expansion Two USB 3 ports (up to 5 Gbps) Thunderbolt 2 port (up to 20 Gbps) MagSafe 2 power port Wireless Wi-Fi 802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible Bluetooth Bluetooth 4.0 wireless technology Audio Stereo speakers Dual microphones 3.5 mm headphone jack Support for Apple iPhone headset with remote and microphone Keyboard and Trackpad Full-size backlit keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement) with ambient light sensor Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch, rotate, swipe, three‑finger swipe, four-finger swipe, tap, double-tap, and drag capabilities Electrical and Operating Requirements Line voltage: 100-240V AC Frequency: 50Hz to 60Hz Operating temperature: 50° to 95° F (10° to 35° C) Storage temperature: -13° to 113° F (-25° to 45° C) Relative humidity: 0% to 90% noncondensing Operating altitude: tested up to 10,000 feet Maximum storage altitude: 15,000 feet Maximum shipping altitude: 35,000 feet Operating System OS Catalina Engineered to take full advantage of your Mac hardware, OS Catalina is designed to be as easy to use as it is beautiful to look at. It comes with an amazing collection of apps you'll use — and love — every day. And it enables your Mac and iOS devices to work wonderfully together.

Apple MacBook Air 13-inch 2017 i5 1.8Ghz 128GB [Grade A]Display13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colorsSupported resolutions: 1440 by 900 (native), 1280 by 800, 1152 by 720, and 1024 by 640 pixels at 16:10 aspect ratio and 1024 by 768 and 800 by 600 pixels at 4:3 aspect ratioStorage128GB128GB PCIe-based SSDProcessor1.8GHz dual-core Intel Core i5, Turbo Boost up to 2.9GHz, with 3MB shared L3 cacheMemory8GB of 1600MHz LPDDR3 onboard memoryBattery and Power2Up to 12 hours wireless webUp to 12 hours iTunes movie playbackUp to 30 days standby timeBuilt-in 54‑watt‑hour lithium‑polymer battery45W MagSafe 2 Power Adapter with cable management; MagSafe 2 power portSize and WeightHeight: 0.11–0.68 inch (0.3–1.7 cm)Width: 12.8 inches (32.5 cm)Depth: 8.94 inches (22.7 cm)Weight: 2.96 pounds (1.35 kg)Graphics and Video SupportIntel HD Graphics 6000Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 3840-by-2160 resolution at 60Hz on an external display, both at millions of colors.Thunderbolt digital video outputNative Mini DisplayPort outputDVI output using Mini DisplayPort to DVI Adapter (sold separately)VGA output using Mini DisplayPort to VGA Adapter (sold separately)Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately)HDMI audio and video output using third-party Mini DisplayPort to HDMI Adapter (sold separately)Camera720p FaceTime HD cameraCharging and ExpansionTwo USB 3 ports (up to 5 Gbps)Thunderbolt 2 port (up to 20 Gbps)MagSafe 2 power portSDXC card slot3.5 mm headphone jackWirelessWi-Fi802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatibleBluetoothBluetooth 4.0 wireless technologyAudioStereo speakersDual microphones3.5 mm headphone jackKeyboard and TrackpadFull-size backlit keyboard with:78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement)Ambient light sensorMulti-Touch trackpad for precise cursor control; supports inertial scrolling, pinch, rotate, swipe, three‑finger swipe, four-finger swipe, tap, double-tap, and drag capabilitiesElectrical and Operating RequirementsLine voltage: 100-240V ACFrequency: 50Hz to 60HzOperating temperature: 50° to 95° F (10° to 35° C)Storage temperature: –13° to 113° F (–25° to 45° C)Relative humidity: 0% to 90% noncondensingOperating altitude: tested up to 10,000 feetMaximum storage altitude: 15,000 feetMaximum shipping altitude: 35,000 feetOperating SystemmacOSmacOS is the operating system that powers everything you do on a Mac. macOS Mojave brings new features inspired by its most powerful users, but designed for everyone. So you can get more out of every click.AccessibilityAccessibility features help people with disabilities get the most out of their new MacBook Air. With built-in support for vision, hearing, physical and motor skills, and learning and literacy, you can create and do amazing things.Features include:VoiceOverReduce MotionClosed CaptionsZoomSiri and DictationText to SpeechIncrease ContrastSwitch ControlBuilt-in AppsPhotosiMovieGarageBandPagesNumbersKeynoteSiriSafariMailFaceTimeMessagesMapsNewsStocksHomeVoice MemosNotesCalendarContactsRemindersPhoto BoothPreviewiTunesBooksApp StoreTime Machine