512GB 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 - 2017 that has been updated to macOS 10.13.x (High Sierra) prior to installation of this SSD. With macOS 10.13 (High Sierra), Apple enabled your laptop to be 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 Apple menu at the upper left of your display and selecting "About This Mac".The fastest 512GB Upgrade compatible with MacBook Air 2015 or 2017: NVMe Interface, 4 PCIe lanes (x4) and clocking in at 1550MB/s Read and 1350MB/s Write! 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 512GB 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 - 2017 that has been updated to macOS 10.13.x (High Sierra) prior to installation of this SSD. If your laptop is already running macOS 10.13 (High Sierra) or later, then you are ready to go. MCE 512GB PCIe-based NVMe 4 Lane (x4) SSD Flash Drive utilizing all 4 PCIe data lanes and operating at 1550MB/s Read and 1350MB/s Write!
• NVMe Interface - The Next Generation of SSDs designed specifically to take advantage of SSD's low latency, parallelism, and makes your Mac faster overall because it uses less CPU cycles than your previous SSD for storage management!
• Highest-performance drive ever created that is compatible with the MacBook Air. TRIM: automatically enabled. Boot Camp compatible.
• At 512GB 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 and 2017 only. macOS Version: compatible with macOS 10.13.x (High Sierra), 10.14.x (Mojave) and all future macOS versions applicable to your laptop as well as Windows installations using Apple's Boot Camp or virtualization software. Verify which laptop 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".