This product is either discontinued or we cannot get that from suppliers.
Transcend Jetdrive TS960GJDM825 External SSD Upgrade Kit for Mac, Capacity 240 GB/480 GB/960 GB, Read 950MB/s, Write 950MB/s Speeds, Thunderbolt 10Gb/s Connection, 3D NAND Flash, PCIe Gen3x2 , Aluminium.
Transcend's JetDrive 825 features a 10Gb/s Thunderbolt interface, capable of blazing-fast file transfers. The drive is housed in sleek, aluminum alloy enclosure which was designed to tastefully complement your Mac's simple, clean design.