1TB SSD Compatible with MacBook Air 2015 and Compatible with MacBook Air 2017: PCIe-Based 4 Lane (x4) NVMe SSD Flash Storage Upgrade - Requires macOS 10.13.x (High Sierra) or Later

Please Note: This SSD is compatible with MacBook Air 2015 and 2017 that have been updated to macOS 10.13.x (High Sierra) or later before installing this SSD. With macOS 10.13 (High Sierra), your laptop is able to utilize this faster type of NVMe-based SSD. If your laptop is already running macOS 10.13 (High Sierra) or later, then you are ready to go. You can check which machine you have and which macOS you're running by going to the menu at the upper left of your display and selecting "About This Mac".The fastest 1TB Upgrade compatible with MacBook Air 2015 or 2017: NVMe Interface, 4 PCIe lanes (x4) and clocking in at 1550MB/s Read and 1450MB/s Write! Your laptop is a high performing Mac requiring the very highest performance PCIe-based flash drives available today. The MCE 512GB PCIe-based NVMe Flash SSD Upgrade Solution compatible with MacBook Air was designed to take advantage of the super-fast PCIe architecture present in that machine. This upgrade includes all the tools necessary to perform the upgrade as well as an illustrated installation and upgrade guide. Everything you need to upgrade your machine is included! Compatibility Compatible with MacBook Air 2015 and compatible with MacBook Air 2017 running macOS 10.13.x (High Sierra) or later. Package Contents MCE 1TB PCIe-based NVMe Flash SSD compatible with MacBook Air 2015 and compatible with MacBook Air 2017 MCE Drive Installation Tool Kit Illustrated Installation and Upgrade Guide

• Please Note: This SSD is compatible with MacBook Air 2015 and 2017 that have been updated to macOS 10.13.x (High Sierra) or later before installing this SSD. If your laptop is already running macOS 10.13 (High Sierra) or later, then you are ready to go. MCE 1TB PCIe-based NVMe 4 Lane (x4) SSD Flash Drive utilizing all 4 PCIe data lanes and operating at 1550MB/s Read and 1450MB/s Write!
• NVMe Interface - Created specifically to take advantage of SSD's low latency, parallelism, and uses less CPU cycles than previous storage interfaces!
• Highest performance drive ever created compatible with MacBook Air.
• At 1TB usable capacity, now you can work the way you want to and lessen your need for lower performing, expensive external drives. 5 Year Warranty!
• Compatibility: Compatible with MacBook Air 2015 - 2017 running macOS 10.13.x (High Sierra), macOS 10.14.x (Mojave) and all future macOS versions applicable to your machine as well as Windows installations using Boot Camp or virtualization software.