

⚡ Unlock Turbocharged Storage — Because Speed Waits for No One
The ACASIS TBU405 Air is a cutting-edge 40Gbps USB4 M.2 NVMe SSD enclosure designed exclusively for high-performance Mac M1/M2 Pro/Max and compatible devices. It supports tool-free installation of M-Key 2280/2260/2242/2230 SSDs up to 8TB, delivering ultra-fast data transfers with a robust, fanless aluminum chassis for silent, reliable cooling. Perfect for professionals demanding seamless, portable storage expansion with plug-and-play ease across macOS, Windows, and Linux.
















| ASIN | B0DD34LH8R |
| Best Sellers Rank | #128,190 in Computers ( See Top 100 in Computers ) #555 in Enclosures |
| Compatible devices | Laptop |
| Data transfer rate | 40 Gigabits Per Second |
| Hard disk form factor | 22 Millimeters |
| Item model number | TBU405 Air |
| Manufacturer | FREEGENE |
| Max number of supported devices | 2 |
| Memory storage capacity | 8 TB |
| Package Dimensions | 14.4 x 10.21 x 3.71 cm; 249 g |
| UPC | 781108279634 |
V**I
Works like a charm. No heating issue observed so far. Using WD SN770 2TB with my mac studio m1 max. Giving expected read and write speeds. Value for money product.
R**H
I bought this Thunderbolt 3 SSD enclosure (Model B0DD34LH8R) to upgrade my Mac Mini M4, which came with only 256 GB of storage. I paired it with a 2 TB WD Black M.2 SSD, applied the thermal pad(both side of the ssd) (heat tape), closed the case, and cloned my internal SSD using Carbon Copy Cloner (CCC). After switching the boot drive, my Mac now runs from the external SSD smoothly — effectively turning it into a 2 TB Mac Mini without paying Apple’s huge storage premium. Performance is excellent — I get around 2800 MB/s read and write speeds, which matches the Mac’s internal drive speed since it’s already throttled around that level. Thunderbolt 3’s 40 Gbps bandwidth is fully utilized. However, the product description says it has a cooling fan, but it actually doesn’t. That’s misleading. Fortunately, the aluminum body and heat pad manage temperatures decently, but under heavy transfers it can get warm. ✅ Pros: True Thunderbolt 3 performance (~2800 MB/s) Solid aluminum body and premium build Easy setup and bootable on macOS ⚠️ Cons: No fan despite the claim Gets warm during long transfers Overall, still a great enclosure for Mac users, but the missing fan description needs correction.
A**R
This very bad working condition Don’t buy this one .8000/-rupes waste this not working my mac studio thunder bolt and usb
E**N
It works well as advertised. It heats and since it is metal and has no fans, you can feel the heat. Can only be used in thunderbolt 4 and above. For the price, it is a major limitation
A**H
Pathetic
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