---
product_id: 684853778
title: "ACASIS 40Gbps M.2 NVMe SSD Enclosure, Only Compatible with USB4,TBU405 Air for M1 M2 Pro/Max, Tool Free Installation, Support M-Key Interface B+M 2280/2260/2242/2230 SSD Size"
brand: "freegene"
price: "€ 148.63"
currency: EUR
in_stock: true
reviews_count: 5
category: "Freegene"
url: https://www.desertcart.de/products/684853778-acasis-40gbps-m-2-nvme-ssd-enclosure-only-compatible-usb4
store_origin: DE
region: Germany
---

# 40Gbps blazing transfer speed Supports up to 8TB SSD capacity Tool-free, zero hassle setup ACASIS 40Gbps M.2 NVMe SSD Enclosure, Only Compatible with USB4,TBU405 Air for M1 M2 Pro/Max, Tool Free Installation, Support M-Key Interface B+M 2280/2260/2242/2230 SSD Size

**Brand:** freegene
**Price:** € 148.63
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock Turbocharged Storage — Because Speed Waits for No One

## Quick Answers

- **What is this?** ACASIS 40Gbps M.2 NVMe SSD Enclosure, Only Compatible with USB4,TBU405 Air for M1 M2 Pro/Max, Tool Free Installation, Support M-Key Interface B+M 2280/2260/2242/2230 SSD Size by freegene
- **How much does it cost?** € 148.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/684853778-acasis-40gbps-m-2-nvme-ssd-enclosure-only-compatible-usb4)

## Best For

- freegene enthusiasts

## Why This Product

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

## Key Features

- • **Blazing USB4 Speed:** Harness the full 40Gbps bandwidth for lightning-fast data transfers that leave USB 3.2 in the dust.
- • **Sleek, Silent, and Cool:** Premium fanless aluminum design ensures whisper-quiet operation and efficient passive cooling on the go.
- • **Massive Storage Expansion:** Scale your workspace with up to 8TB of portable SSD storage, perfect for heavy workloads and media libraries.
- • **Effortless Tool-Free Installation:** Pop in your M-Key NVMe SSD without screws or drivers—plug and play for instant productivity.
- • **Seamless Mac & Multi-OS Compatibility:** Optimized for M1/M2 Pro/Max Macs and iPad Pro, plus Windows and Linux support—future-proof your workflow.

## Overview

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.

## Description

ACASIS 40Gbps M.2 NVMe SSD Enclosure, Only Compatible with USB4,TBU405 Air for M1 M2 Pro/Max, Tool Free Installation, Support M-Key Interface B+M 2280/2260/2242/2230 SSD Size

Review: 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.
Review: 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.

## Features

- Designed for USB4 and 40Gbps ports: The TBU405 Air is exclusively designed for the standard USB4 and 40Gbps Type-C interface standard, which stands out as a powerful USB4 enclosure and 40Gbps enclosure. This focused design ensures that it delivers uncompromising, top performance data transfer speeds. You can maximize the potential of your high-speed NVMe SSD for seamless workflows. To ensure this experience, it is specifically compatible with native USB4 and other 40Gbps ports and is not backward compatible with previous USB standards such as USB 3.2, 3.0 or 2.0.
- Lightning-fast transfers: Experience top speed with this 40Gbps M.2 NVMe SSD enclosure, which transfers large 3G files within 1 second, faster than most internal drives. It is designed as a premium NVMe enclosure and efficient M.2 SSD enclosure (Note: Different speeds may differ from different systems due to different losses and speeds).
- Large capacity expansion: As a robust SSD enclosure, this M.2 NVMe model supports up to an 8TB SSD enclosure configuration, giving you a larger capacity. Work data, popular games, videos and movies can be stored anytime and anywhere. (Note: SSD NOT INCLUDED)
- Tool-less installation and wide compatibility: This versatile USB enclosure features tool-less design. No screw or screwdriver needed, no extra driver required, plug and play. It is a convenient portable SSD enclosure that is perfect for travel and business use in the office.
- Plug and Play: This M.2 NVMe case supports M1 Pro/Max Mac devices and iPad Pro. Compatible with Windows, macOS and Linux. Simply plug and play without driver. Our NVMe enclosure supports hot-swapping without affecting the rest of the server's capabilities.
- Robust, quiet and reliable: The ACASIS SSD enclosure has a solid, fanless aluminum housing with a curved surface. The design ensures effective passive cooling and exceptional durability. Enjoy completely quiet operation and reliable data protection in any environment. This 40Gbps M.2 NVMe SSD enclosure comes with two-year quality assurance. For warranty conditions and detailed information, please refer to the product manual.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** FREEGENE
- **Colour:** black
- **Hardware interface:** Thunderbolt
- **Hardware platform:** Windows
- **Material:** Aluminum

## Images

![ACASIS 40Gbps M.2 NVMe SSD Enclosure, Only Compatible with USB4,TBU405 Air for M1 M2 Pro/Max, Tool Free Installation, Support M-Key Interface B+M 2280/2260/2242/2230 SSD Size - Image 1](https://m.media-amazon.com/images/I/61EsrlgsTgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by V***I on 13 May 2025*

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.

### ⭐⭐⭐⭐ Review
*by R***H on 9 October 2025*

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.

### ⭐ Review
*by A***R on 27 September 2025*

This very bad working condition Don’t buy this one .8000/-rupes waste this not working my mac studio thunder bolt and usb

## Frequently Bought Together

- ACASIS 40Gbps M.2 NVMe SSD Enclosure, Only Compatible with Thunderbolt 4/3 USB4,TBU405 Air for M1 M2 Pro/Max, Tool Free Installation, Support M-Key Interface B+M 2280/2260/2242/2230 SSD Size
- Samsung 990 EVO Plus SSD 2TB, PCIe Gen 4x4, Gen 5x2 M.2 2280, Speeds Up-to 7,250 MB/s, Upgrade Storage for PC/Laptops, HMB Technology and Intelligent Turbowrite 2.0, (MZ-V9S2T0B/AM)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-15*