1. Thunderbolt 3 NVMe M Key m.2 SSD enclosure, Support PCI-Ex4, Theoretical transmission speed up to 40Gb/s (MAX). Test data（Samsung 970 Evo 250G）: Thinkpad T470 (x2) read: 1400+ MB/s, write: 1500+ MB/s; MAP 2018 (x4) read: 2700+ MB/s, write: 1500+ MB/s.Not all Thunderbolt 3 computers are x4 full speed, part of which maybe x2.
2. Only compatible with 2280 and 2260 M.2 NVMe SSD. Doesn't support Not compatible with M.2 SATA SSDs, M.2 PCIe AHCI SSDs, or other M.2 non-NVMe devices.
3. Enhanced heat dissipation design, heat sink integrated giving the best ventilation for NVMe SSD running at high speed.
4. Ideal for professional content creators needing to transfer and edit high-res content, gamers who want high-performance external libraries, or admins who want to run virtual machines at performance levels not possible before Thunderbolt 3.
5. Giving Thunderbolt 3 protocol special high-speed transmission Type-C Gen3 data cable (Intel Certified), wihch Length about 50cm, and Installation tool, protective case

Package content:
1 x Thunderbolt 3 NVMe External SSD enclosure
1 x Thunderbolt 3 protocol special high-speed data cable 50cm (Intel Certified)
1 x Heat Sink
1 x Installation Tool
1 x Quick Start Guide