Acasis
Acasis TBU405 40Gbps Thunderbolt M.2 NVMe drive enclosure
- Gray
- Enclosure
$233.99
0.00289721BTC
In stock
Acasis
Acasis TBU405Pro 40Gbps M.2 NVMe enclosure with fan
Tool-free aluminium enclosure with built-in fan holds one M.2 2280 NVMe drive up to 8 TB and connects via Thunderbolt at 40 Gbps
- ColorGray
- SizeM.2
- TypeEnclosure
- MaterialAluminum
- Thunderbolt 3Yes
- External InterfaceThunderbolt
Model TBU405Pro M1
- TBU405
- TBU405Pro M1
- 40 Gbps peak throughput reaches 2805 MB/s read and 2734 MB/s write
- Tool-free design accepts 2280 M-key and B+M-key SSDs up to 8 TB
- Built-in fan plus aluminium shell keeps drive temperatures low during heavy workloads
- Pocket-sized aluminium body weighs 11.5 ounces for easy travel
- Works with Thunderbolt 3 and 4 plus USB 4, 3.2, 3.1, 3.0 and 2.0 on Windows, macOS and Linux
40Gbps Thunderbolt NVMe enclosure
The Acasis TBU405Pro is a single-bay M.2 NVMe enclosure that connects through a Thunderbolt 3 or 4 port at up to 40Gbps. It accepts 2280 M-key and B+M-key SSDs up to 8TB with tool-free installation and works with Windows, macOS and Linux without driver installation.
Aluminium shell with integrated fan
An aluminium body, thermal pad and built-in cooling fan dissipate heat from the SSD during sustained transfers. The enclosure draws power from the host Thunderbolt connection, so no external power supply is required. Fan noise and thermal behaviour will depend on the drive fitted and workload.
Upgrade from slower USB enclosures
Replacing a USB 3.2, 3.1, 3.0 or 2.0 enclosure with this model raises the interface ceiling to 40Gbps, which matters when moving large video or dataset files. The jump is worth it only if the host has a Thunderbolt 3 or 4 port; on plain USB-C the speed falls back to the host limit.
Highlights
- 40 Gbps peak throughput reaches 2805 MB/s read and 2734 MB/s write
- Tool-free design accepts 2280 M-key and B+M-key SSDs up to 8 TB
- Built-in fan plus aluminium shell keeps drive temperatures low during heavy workloads
- Pocket-sized aluminium body weighs 11.5 ounces for easy travel
- Works with Thunderbolt 3 and 4 plus USB 4, 3.2, 3.1, 3.0 and 2.0 on Windows, macOS and Linux
Specifications
| Brand | Acasis |
|---|---|
| Series | Thunderbolt 3/4 40Gbps Enclosure |
| Model | TBU405Pro M1 |
| Color | Gray |
| Size | M.2 |
| Type | Enclosure |
| Material | Aluminum |
| Thunderbolt 3 | Yes |
| External Interface | Thunderbolt |
| HDD Count Supported | Single HDD |
| Number of Bay | 1 |
| Maximum Capacity (per Bay) | Up to 8TB |
| Fan | Yes |
| Operating Systems Supported | Windows / Mac / Linux |
| Weight | 11.5 ounces |
Other versions of this model
1 more in the same range
Same family, different memory, cooler or clock — compare before you commit.
Questions about this item
How is the M.2 NVMe SSD installed in the TBU405Pro enclosure and what step is commonly missed?
The enclosure uses a tool-free design; slide the 2280 M-key or B+M-key SSD into the slot until it clicks, then close the aluminum lid. The step often missed is removing the protective film from the thermal pad so it contacts the drive.
What maintenance or replacement will the built-in cooling fan need over time?
The fan is integrated into the aluminum shell and runs from the Thunderbolt bus. If airflow drops, open the lid and clear dust from the fan blades and ventilation holes with compressed air; no user-replaceable fan module is provided.
What is the first performance limit reached during sustained 40 Gbps transfers?
Thermal throttling of the NVMe SSD appears first. The aluminum body, thermal pad and fan delay it, but continuous writes at up to 2805 MB/s read and 2734 MB/s write will eventually raise drive temperature past its throttle point.
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