Update your Macbook with Dogfish NVMe PCIe SSD, No More Storage Limit. If you have an older Mac and annoying with the slow original drive. You can enjoy the advantages of Dogfish PCIE SSD by upgrading your Mac. Upgrading with our MAC SSD would be more cheaper than replacing the system or your laptop. And it’s simple to install, no need any professional skill. Faster Transfer Speed of NVMe SSD for Macbook. Our Macbook SSD is faster and more reliable. Based on PCIe Gen34, The sequential read speed is up to 2200MB/s and the sequential write speed is up to 1600MB/s. This means the programs launch and run more quickly, files are transferred faster, and you can do data-intensive work without worrying that your computer will stall or freeze. Reliable Performance of NVMe PCIe SSD for Macbook. Support TRIM / S. M. A. R. T / Garbage Collection / LDPC ECC etc, let the nvme ssd has more stable and reliable performance. Run cooler and less power consumed, extend your Mac life. Less prone to damage due to shock and vibration without moving parts. Adopt non volatile storage technology that doesn’t require power to retain data. Don’t make any noise at all. 2 SSD Wide Compatibility With Macbook Air / Pro / iMac / Mac Mini. Before moving out original SSD, must upgrade the host MAC to macOS 10.13 High Sierra (or 10.14 Mojave or 10.15 Catalina). Why should update OS version on my original SSD before removing? The macOS 10.13 High Sierra, 10.14 Mojave, 10.15 Catalina versions include an EFI firmware update on the motherboard to recognize PCIe 3.0 NVMe SSD. The macOS 10.12 Sierra, Mac OS X or older versions’ EFI firmware just only can get original PCIe 2.0 AHCI SSD to work. Firmware version will change as system updates, will stay on motherboard even if SSD is taken off. 1, Replace the new SSD to Mac directly. 2, Boot and press Command-Option-R, then connect to wifi network. This will ensure the latest OS Utilities version will be loaded. 3, Select “Disk Utility” from “macOS Utilities”, Erase new SSD. 4, Select “Reinstall macOS” from “macOS Utilities”, follow the steps and waiting for installation. Interface: PCIe NVMe Gen34. Control chip: Silicon Motion. Flash Type: 3D TLC NAND Flash. Product Size: 89.2242mm. Sequential Read Speed: 2200MB/s (1TB), 1800MB/s (512GB), 1700MB/s (256GB). Sequential Write Speed: 1600MB/s (1TB), 1400MB/s (512GB), 1200MB/s (256GB). The read/write speed is related to the performance of the device and may be lower than the above values. Storage temperature: -4585 °C. Power Supply: 3.3V±5%. Support OS version: macOS 10.13+ or later. Item packaging includes: 1SSD, 2screwdrivers for MacBook & SSD.