256GB SSD for MacBook Air 2015 and MacBook Air 2017: PCIe-Based 4 Lane (x4) NVMe SSD Flash Storage Upgrade - Requires macOS 10.13.x (High Sierra) or Later

Please Note: Your MacBook Air 2015 or MacBook Air 2017 must be updated to macOS 10.13.x (High Sierra) or later before installing this drive. With macOS 10.13 (High Sierra), Apple enabled the MacBook Air 2015/2017 to be able to utilize this faster type of NVMe-based SSD. If your MacBook Air is already running macOS 10.13 (High Sierra) or later, then you are ready to go. You can verify which MacBook Air model you have and which macOS you're running by going to the Apple menu at the upper left of your display and selecting "About This Mac".The fastest 1TB Upgrade for your MacBook Air 2017: NVMe Interface, 4 PCIe lanes (x4) and clocking in at 1550MB/s Read and 1350MB/s Write! Your MacBook Air is a high performing Mac requiring the very highest performance PCIe-based flash drives available today. The MCE 1TB PCIe-based NVMe Flash SSD Upgrade Solution for the 2015 and 2017 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 MacBook Air 2017 running macOS 10.13.x (High Sierra) or later. Model Identifier: MacBookAir7,1 and MacBookAir7,2 (Find your MacBook Air Model Identifier by clicking on the Apple menu (at the upper left of your screen). Select the top item "About This Mac..." and then click the "System Report" button on the next window... then your Mac's Model Identifier will be listed near the top of the next window that appears.) Package Contents MCE 256GB PCIe-based NVMe Flash SSD for MacBook Air 2015 - 2017 MCE Drive Installation Tool Kit Illustrated Installation and Upgrade Guide

• Please Note: Your MacBook Air 2015 or MacBook Air 2017 must be updated to macOS 10.13.x (High Sierra) or later before installing this drive. With macOS 10.13 (High Sierra), Apple enabled this MacBook Air to be able to utilize this faster type of NVMe-based SSD. If your MacBook Air 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 for the 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 - Machine: MacBook Air 2015 and MacBook Air 2017 only. macOS Version: compatible with macOS 10.13.x (High Sierra), macOS 10.14.x (Mojave) and all future macOS versions applicable to your MacBook Air 2015 or MacBook Air 2017 as well as Windows installations using Apple's Boot Camp or virtualization software. Verify which MacBook Air model you have and which macOS you're running by going to the Apple menu at the upper left of your display and selecting "About This Mac".