Transcend Information Inc. (Transcend), a leading manufacturer of storage and multimedia products, is proud to announce the release of the JetDrive 855/850 PCIe Gen3 x4 NVMe solid-state drive (SSD) upgrade kit for Mac computers. The JetDrive 850 features read and write speeds of up to 1,600MB/s and 1,300MB/s, and is made of the latest 3D NAND flash. The JetDrive 855 includes a sleek aluminum Thunderbolt enclosure for a simple upgrade experience. Both models are the perfect upgrade for a MacBook Pro, MacBook Air, Mac mini, or Mac Pro.