JetDrive 855 Transcends JetDrive 855 Thunderbolt PCIe portable SSD combines a JetDrive 850 PCIe SSD with a sleek aluminum Thunderbolt enclosure to instantly revitalize your Thunderbolt-equipped MacBook Pro, MacBook Air, Mac mini, or Mac Pro! Which model suits you? Transcends JetDrive series includes four models of PCIe SSDs. They are JetDrive 855, JetDrive 850, JetDrive 825, and JetDrive 820. Find out which model suits your needs! Thunderbolt technology in a sleek case Transcends JetDrive 855 features a 10Gb/s Thunderbolt interface, capable of blazing-fast file transfers. The drive is housed in a sleek, aluminum-alloy enclosure designed to tastefully complement your Macs simple, clean lines. In addition, the inner SSD is removable for more versatile use based on your preferences. Expand storage in a flash Upgrading your Mac with a Transcend JetDrive 850 allows you to increase storage capacity to up to 960GB, ensuring you have plenty of space for your documents, photos, music, and videos. Feel the need for speed Transcends JetDrive 850 utilizes the PCIe Gen3 x4 interface paired with the latest 3D NAND flash, resulting in compelling performance of up to 1,600MB/s read and 1,300MB/s write. Transcends JetDrive 850 gives you fluid, real-time performance for demanding professional tasks, video editing, or 3D graphics rendering.