Specification: Brand: JEYI Hard Disk Apt: M.2 NVMe 2280 Transfer Speed: 40Gbps Support Capacity: Up to 4TB Sleep Mode: Supported TB Compatibility: TB 3/ T 4 Interface: Type-C with backward compatibility for USB3.2/ USB3.1/ USB3.0/ USB2.0 Material: Aluminum-Magnesiium Alloy System Compatibility: Windows/ Linux/ for Mac OS
Features: 1. High Speed: High transfer speed of 40Gbps providing fast and efficient data transmission. 2. High Capacity: Supports M.2 NVMe drives up to 4TB capacity for all your storage needs. 3. Compatibility: Compatible with TB 3/ TB 4; and Type-C interface backward compatible with USB3.2/3.1/3.0/2.0, that makes it adaptable to more devices. 4. Smart Sleep Mode: Energy efficient with the ability to automatically go into Sleep Mode to save power. 5. Durable Material: Crafted from a sturdy aluminum-magnesiium alloy that offers enhanced durability and heat dissipation.
The case is of very high quality, and its visual design gives off the impression of a premium product. The Pro version that I purchased does not come with a fan, and cooling is done passively. When the case is idle, the temperature ranges between 50–52°C, and under medium usage, it goes up to around 58°C.
For comparison, the temperature of a MacBook Air with passive cooling typically ranges from 40 to 50°C, so based on that, we can say the passive cooling of this case is quite good. Most NVMe drives can withstand temperatures up to 80°C, so 50°C is not unusual or concerning. With this case, I was able to achieve the maximum speed my current NVMe drive offers — 1700 MB/s read and 1400 MB/s write.