---
product_id: 472354667
title: "40Gbps M.2 NVMe SSD Enclosure,Tool Free Installation NVMe ssd Enclosure for M1/M2/ Pro/Air Compatible with thunderbolt3/4/5/USB4/3.2/3.1/3.0/2.0, Support 2280/2260/2242/2230B+M M-Key (TBU401)"
brand: "acasis"
price: "A$256"
currency: AUD
in_stock: true
reviews_count: 5
category: "Acasis"
url: https://www.desertcart.com.au/products/472354667-40gbps-m-2-nvme-ssd-enclosure-tool-free-installation-nvme
store_origin: AU
region: Australia
---

# 40Gbps blazing speed Aluminum heat dissipation Tool-free snap-in install 40Gbps M.2 NVMe SSD Enclosure,Tool Free Installation NVMe ssd Enclosure for M1/M2/ Pro/Air Compatible with thunderbolt3/4/5/USB4/3.2/3.1/3.0/2.0, Support 2280/2260/2242/2230B+M M-Key (TBU401)

**Brand:** acasis
**Price:** A$256
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock lightning-fast external storage with zero fuss!

## Quick Answers

- **What is this?** 40Gbps M.2 NVMe SSD Enclosure,Tool Free Installation NVMe ssd Enclosure for M1/M2/ Pro/Air Compatible with thunderbolt3/4/5/USB4/3.2/3.1/3.0/2.0, Support 2280/2260/2242/2230B+M M-Key (TBU401) by acasis
- **How much does it cost?** A$256 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/472354667-40gbps-m-2-nvme-ssd-enclosure-tool-free-installation-nvme)

## Best For

- acasis enthusiasts

## Why This Product

- Trusted acasis brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Works seamlessly with Windows, Mac, and Linux systems plus supports multiple M.2 sizes (2280/2260/2242/2230).
- • **Premium Aluminum Cooling:** Stay cool under pressure with an aluminum alloy shell and included thermal pads for sustained peak performance.
- • **Blazing 40Gbps USB4 Speed:** Experience near-internal SSD speeds with ultra-fast USB4 and backward compatibility down to USB2.0.
- • **Lifetime Support & Reliability:** Backed by ACASIS’s dedicated lifetime technical support—because your data deserves the best.
- • **Effortless Tool-Free Installation:** Swap or upgrade your M.2 NVMe SSD in seconds—no screws, no hassle, just pure convenience.

## Overview

The ACASIS 40Gbps M.2 NVMe SSD Enclosure delivers ultra-high-speed data transfer up to 40Gbps via USB4, supports multiple M.2 SSD sizes with tool-free installation, and features an aluminum shell with thermal pads for excellent heat dissipation. Compatible across Windows, Mac, and Linux, it’s designed for professionals demanding fast, reliable, and portable storage solutions with lifetime technical support.

## Description

ACASIS 40Gbps M.2 NVMe SSD Enclosure, Tool Free Installation, NVMe Enclosure for M1/M2/ Pro/Max,Compatible with USB4/3.2/3.1/3.0/2.0, Support 2280/2260/2242/2230 B+M M-Key (TBU401)

Review: When I originally received this enclosure it was missing the heat pad and the usb-c cable that was included was short and only capable of usb 2 speed so when I wrote my original review I complained about the low data speed (30MB/s) and the missing heat pads and only gave the product 3 stars. The enclosure was fine, the accessories were bad or missing. After a long email correspondence with Acacias Customer Support, which included pictures of what I received, they told me that the cable I got was not their cable and so I thought I might have received a device that had been shipped to someone else and returned without the heat pad and with a useless usb cable, and I ordered a replacement. The Acacias product package was not sealed so it was not possible to tell if it already had been opened. The replacement just came in and when I opened the package (it was also not sealed) it contained a proper Thunderbolt 4 cable and the heat pad, and when I tested it I received the kind of speeds I expected - about 2800 MB/s using the WD 1 TB 2280 memory. That makes it clear that I received the bad usb cable due to my original order having been returned to desertcart by another customer and not due to the fault of the vendor, so I have revised my review. This enclosure works very well, although it does get very warm and probably needs a cooling fan as well as the included heat pads. The speeds are everything I expected and the included Thunderbolt cable works properly. It is a bit short for me, but it is the length specified in the product description. I am happy with the replacement and feel capable of recommending it. If you want external drive speeds close to the speed of your computer memory consider this enclosure. --------------- I recently bought the version of this enclosure that contains a fan for cooling and when I tried to leave a review desertcart told me that I had already reviewed it, although that version was the version without the fan, so I am adding this review to the end of the original review. While the original enclosure is a great way of adding high speed memory to your system it suffered from one drawback and that is it needs cooling. I solved the problem by buying a small muffin fan and attaching it to the enclosure and, with that, it ran cool and I had no heat issues. This new enclosure solves that problem and I have replaced the version without the fan with this one. This is a first class enclosure with transfer speeds as high, if not higher, than the internal memory of my Mac M2 Mini. Repeated use of the Black Magic speed app showed no slowdowns due to thermal throttling so it is dependable and fast, even after long use. Thee are some minor issues. First, the manual that comes with the enclosure is the manual for the version without the fan so it contains no information about the cooling fan. There is a small button on the side of the enclosure to turn the fan on and off, but even when holding the unit next to my face I could not feel air moving. To be sure that the fan was working I had to hold it next to my ear, and I could hear it running. There is also a small LED on the side of the enclosure and it shows a constant light when the fan is running and a blinking light when the fan is not running. I have picked up the enclosure during the day and found it to be slightly warm while the old enclosure was hot to the touch without the muffin fan I attached. This is a great enclosure and I believe that it deserves the 5 stars I have given it.
Review: I recommend

## Features

- [Superior Speed M.2 Enclosure] Our ACASIS 40Gbps nvme enclosure is fully compatible with USB4.0 and downward compatible with USB3.2/3.1/3.0/2.0. The enclosure speed test for the Samsung 980 PRO 250GB is 2805mb/s for read and 2734mb/s for write.
- [Tool-free & Easy to Install] No screw or screwdriver is required. This m.2 enclosure is lightweight, luxury and compact. You could easily pull the back-shell off or put it back with your hand. It ONLY supports M KEY and B&M KEY SSD with size 2280.
- [Excellent Heat Dissipation] With aluminum alloy shell, this SSD enclosure has a great heat dissipation, long-lasting performance. Additionally, this nvme enclosure includes thermal pads with 0.5mm and 1mm for better use. It can improve heat dissipation.
- [Wide Compatibility]Our NVMe enclosure comes with a 19.7 inch thunderbolt 4 C to C data cable. It is compatible with Windows 7 or higher, Mac OS 10.3 or higher and Linux system.
- [Quality Assurance] ACASIS is committed to develop high-quality and professional products for people's daily life. We provide lifetime technical support. If you have any questions with this product, please do not hesitate to contact us. We will reply within 24 hours. (Note: SAMSUNG 980 PRO SSD with built on Heatsink will not fit)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BB74BQVN |
| Best Sellers Rank | #11,210 in Computers ( See Top 100 in Computers ) #47 in Enclosures |
| Compatible devices | Laptop, Desktop, Tablet |
| Data transfer rate | 2300 Megabytes Per Second |
| Hard disk form factor | 22 Millimeters |
| Item model number | TBU-401 |
| Item weight | 137 Grams |
| Manufacturer | ACASIS |
| Material | Aluminum |
| Max number of supported devices | 1 |
| Memory storage capacity | 8 TB |
| Product Dimensions | 10 x 1.45 x 6.1 cm; 137 g |

## Product Details

- **Brand:** ACASIS
- **Colour:** Silver
- **Hardware interface:** Thunderbolt
- **Hardware platform:** Multimedia, Gaming, Business, PC, Linux, Mac
- **Product dimensions:** 10.4L x 5.4W x 1.6H centimeters

## Images

![40Gbps M.2 NVMe SSD Enclosure,Tool Free Installation NVMe ssd Enclosure for M1/M2/ Pro/Air Compatible with thunderbolt3/4/5/USB4/3.2/3.1/3.0/2.0, Support 2280/2260/2242/2230B+M M-Key (TBU401) - Image 1](https://m.media-amazon.com/images/I/512iCDyoG0L.jpg)

## Questions & Answers

**Q: If this item is not using the faster and most recent or updated chipset is there one that is by this manufacturer and if not then by another one?**
A: a number of Reviews here beginning 9-2022 show THIS product's box is updated model TBU401E.  (with "E")
the box states the included cable is Thunderbolt 3.
it drops the false claim printed on the earlier TBU401 box of "USB 4.0".

-----(  newer TBU401E  )-----
https://m.media-amazon.com/images/I/41n8r+Qr+4L.jpg
https://m.media-amazon.com/images/I/41vqV5YTrjL.jpg
https://m.media-amazon.com/images/I/61iyaANm7qL.jpg
https://m.media-amazon.com/images/I/61TKeFrG5NL.jpg

-----( original TBU401 )-----
https://m.media-amazon.com/images/I/81-0pILAsAL.jpg

it seems like all brand enclosures boasting "40Gbps Thunderbolt4 / USB4" are JHL7440 chipset based.
the JHL7440 is actually Thunderbolt3, (not TB4 or USB4), which actually produces only 22Gbps data transfer.
(per Intel, 18Gbps of 40Gbps is reserved for Displayport video).
they also do not support USB Gen 2x2 20Gbps mandatory with USB4.  only USB 3.1 10Gbps.

there's no telling which exact model ACASIS (or anybody else) is shipping at this very moment.
none can possibly transfer 40Gbps - that's 5000 MB/s.  they all get approx half that.
none are USB4 - their USB interface is only USB 3.1.
that's all there is to it.  the ads are all consistently deceptive and untruthful.
and most Answerers in the Q&A only help compound the fraud.
.

**Q: Does this enclosure support nvme 4.0 or only 3.0? will using a 4.0 capable drive provide speed improvements with this enclosure?**
A: No, you most likely will see no difference as others answered partially but not directly. You are bottlenecked by 1- Thunderbolt 3, which theoretically can handle 40Gbs/5,000MBps, but in the real world in my experience tops at 3,500~ish. 2- Various other parameters such as cable quality, NVME drive technologies, SLC, TLC, QLC, VNAND, etc. 
My suggestion: Buy the BEST NVME 3.0 you can, with the largest DRAM or SLC cache, AND make sure that below that cache it has VNAND instead of regular NAND. Keep an eye on too high densities as well. SLC is faster than TLC which is faster than QLC… Best. R.

**Q: Hi, does this drive run a 10gb if i hook it up to a regular usb 3.2 gen 2 port?  thanks!**
A: USB 3.2 Gen 2 max speed is 10 Gbps. The USB port cannot get faster speed, just because a faster devices was connected to that port.

**Q: What is the difference between tbu401 and tbu401e?**
A: review photos show the models are marked differently on their aluminum bodies.

Model: TBU401
Product: USB 4.0 SSD Enclosure
[plug] USB 4.0

https://m.media-amazon.com/images/I/81CDPDhXKwL.jpg
https://m.media-amazon.com/images/I/81T4g-iTRYL.jpg
https://m.media-amazon.com/images/I/81-0pILAsAL.jpg


Model: TBU401E
Product: NVMe SSD Enclosure
[plug] Type-C 40Gbps

https://m.media-amazon.com/images/I/61TnyPjrIkL.jpg
https://m.media-amazon.com/images/I/51vaS5DXQTL.jpg
https://m.media-amazon.com/images/I/51TWhmCtRpL.jpg
https://m.media-amazon.com/images/I/61TKeFrG5NL.jpg
.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***A on 17 May 2023*

When I originally received this enclosure it was missing the heat pad and the usb-c cable that was included was short and only capable of usb 2 speed so when I wrote my original review I complained about the low data speed (30MB/s) and the missing heat pads and only gave the product 3 stars. The enclosure was fine, the accessories were bad or missing. After a long email correspondence with Acacias Customer Support, which included pictures of what I received, they told me that the cable I got was not their cable and so I thought I might have received a device that had been shipped to someone else and returned without the heat pad and with a useless usb cable, and I ordered a replacement. The Acacias product package was not sealed so it was not possible to tell if it already had been opened. The replacement just came in and when I opened the package (it was also not sealed) it contained a proper Thunderbolt 4 cable and the heat pad, and when I tested it I received the kind of speeds I expected - about 2800 MB/s using the WD 1 TB 2280 memory. That makes it clear that I received the bad usb cable due to my original order having been returned to Amazon by another customer and not due to the fault of the vendor, so I have revised my review. This enclosure works very well, although it does get very warm and probably needs a cooling fan as well as the included heat pads. The speeds are everything I expected and the included Thunderbolt cable works properly. It is a bit short for me, but it is the length specified in the product description. I am happy with the replacement and feel capable of recommending it. If you want external drive speeds close to the speed of your computer memory consider this enclosure. --------------- I recently bought the version of this enclosure that contains a fan for cooling and when I tried to leave a review Amazon told me that I had already reviewed it, although that version was the version without the fan, so I am adding this review to the end of the original review. While the original enclosure is a great way of adding high speed memory to your system it suffered from one drawback and that is it needs cooling. I solved the problem by buying a small muffin fan and attaching it to the enclosure and, with that, it ran cool and I had no heat issues. This new enclosure solves that problem and I have replaced the version without the fan with this one. This is a first class enclosure with transfer speeds as high, if not higher, than the internal memory of my Mac M2 Mini. Repeated use of the Black Magic speed app showed no slowdowns due to thermal throttling so it is dependable and fast, even after long use. Thee are some minor issues. First, the manual that comes with the enclosure is the manual for the version without the fan so it contains no information about the cooling fan. There is a small button on the side of the enclosure to turn the fan on and off, but even when holding the unit next to my face I could not feel air moving. To be sure that the fan was working I had to hold it next to my ear, and I could hear it running. There is also a small LED on the side of the enclosure and it shows a constant light when the fan is running and a blinking light when the fan is not running. I have picked up the enclosure during the day and found it to be slightly warm while the old enclosure was hot to the touch without the muffin fan I attached. This is a great enclosure and I believe that it deserves the 5 stars I have given it.

### ⭐⭐⭐⭐⭐ Review
*by C***. on 26 August 2023*

I recommend

### ⭐⭐⭐⭐⭐ Review
*by H***T on 2 October 2025*

Works as advised. Not quite the speeds listed but that could be more to do with my setup and devices.

## Frequently Bought Together

- ACASIS 40Gbps M.2 NVMe SSD Enclosure, Tool Free Installation, TBU 401 for M1 M2 Pro/Max,Compatible with thunderbolt3/4/5,USB4/3.2/3.1/3.0/2.0, Support SSD Size 2280/2260/2242/2230 B+M M-Key (TBU401)
- Samsung 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-16*