[NVME SSD Adapter] - This NVMe SSD convert adapter is DIY kit for assembling a upgraded SSD replacement for MacBook with large capacity NVMe SSD [High Performance] - Used to upgrade your storage capacity, perfect for tech enthusiasts, high-end gamers, 4K & 3D content designers [Applicable SSD Hard Drive] - ONLY support PCIe NVMe based based M Key and B+M Key SSD (NVMe & AHCI), such as Adata NVMe SSD: SX6000, SX7000, SX8200, SX8200 Pro etc, Corsair : MP500, MP510, Crucial: P1, HP: ex920, ex950. Intel NVMe SSD: 600p, 660p, 760p, Toshiba XG3-XG4-XG5-XG5p-XG6 line, Samsung: 960 Evo, 960 Pro, 970 Evo, 970 Pro, WD: v1, v2 and v3, MyDigital: SBX - BPX. NOT support any SATA based SSD [Support System] - It is compatible with MacBook Air 11 A1465 & MacBook Air 13 A1466 (Mid 2013-2017), MacBook Pro (Retina) 13 A1502 & 15" A1398 (Late 2013 - Mid 2015), Mac Pro ME253 MD878 [Please Note] - Require Mac OS 10.13 High Sierra or Later; DO NOT compatible with earlier than Mac OS 10.13 versions; DO NOT support Samsung 970 Evo Plus, PM981, 950 Pro. Please use your original SSD to upgrades your Mac OS before installation 267-Perfect after-sales service: If you have any quality issues or do not like it after receiving it, please contact us and we provide free return and exchange services