The CNM2-U4-GY from Orico is a compact solution that unlocks the potential of M.2 NVMe SSDs for portable storage, but its efficiency depends heavily on both hardware compatibility and user expectations.
At the core, this enclosure transforms an M.2-2280 SSD with PCIe 4.0 x4 into a USB4 device capable of 40 Gbps throughput. The ASMedia ASM2464 controller handles the transition seamlessly, exposing the drive as either an NVMe device over USB4 or a UASP-supported mass-storage device on older interfaces like USB 3.2 Gen 2x2 (20 Gbps). This dual-mode functionality is critical for users balancing speed and compatibility.
The enclosure supports drives up to 8 TB, though actual performance will vary based on the SSD's internal bandwidth. Its aluminum alloy body includes extruded cooling fins, but active dissipation relies on a 20 mm fan—necessary given the heat generated by high-speed transfers. The included USB4 cable is fixed with a type-C to type-A adapter, which limits bandwidth to 10 Gbps when connected to type-A ports, a tradeoff that may frustrate users seeking full 40 Gbps performance.
For High-Speed Workloads
This enclosure is designed for users who demand the highest possible transfer speeds without sacrificing portability. Creators working with large media files or professionals handling data-intensive tasks will benefit most, provided they pair it with a compatible NVMe SSD. The USB4 interface ensures low latency and high throughput, but real-world gains depend on both the drive's internal PCIe lanes and the system's ability to saturate the connection.
For Everyday Users
While the CNM2-U4-GY offers cutting-edge speed, everyday users may find its advantages less compelling. The price point around $70 is reasonable for a premium feature set, but those without high-bandwidth needs or older systems may not notice a significant difference compared to USB 3.2 Gen 2x2. Additionally, the fixed cable design could be an inconvenience for users who prefer more flexible connectivity options.
Key Specs
- Interface: USB4 (40 Gbps) / USB 3.2 Gen 2x2 (20 Gbps)
- Controller: ASMedia ASM2464
- Drive Support: M.2-2280, 2260, 2243, 2230 (up to 8 TB)
- Cooling: Aluminum alloy body with extruded fins and 20 mm fan
- Cable: USB4 type-C to type-A (10 Gbps max when connected to type-A)
- Price: Approximately $70
The CNM2-U4-GY stands out in a market where USB4 adoption is still growing, but its true value lies in the intersection of hardware and use case. For those who need maximum speed and can justify the investment, it delivers. For others, the incremental benefits may not outweigh the cost or complexity.
In practical terms, this enclosure redefines portable storage for high-performance users, bridging the gap between NVMe SSDs and USB4's full potential. Whether that bridge is worth crossing depends on how much speed one truly needs.
