---
product_id: 673402845
title: "ACASIS 40Gbps M.2 NVMe SSD Enclosure with Aluminum for Thunderbolt 4/3/USB4 | Tool-Free Installation;Heat Sink; Noiseless Design;Supports 2280/2260/2242/2230 SSDs;40Gbps;Stable speed"
brand: "freegene"
price: "$107.34"
currency: USD
in_stock: true
reviews_count: 13
category: "Freegene"
url: https://www.desertcart.us/products/673402845-acasis-40gbps-m-2-nvme-ssd-enclosure-with-aluminum-thunderbolt
store_origin: US
region: United States of America
---

# 40Gbps ultra-fast transfer Aluminum heat sink cooling Tool-free installation ACASIS 40Gbps M.2 NVMe SSD Enclosure with Aluminum for Thunderbolt 4/3/USB4 | Tool-Free Installation;Heat Sink; Noiseless Design;Supports 2280/2260/2242/2230 SSDs;40Gbps;Stable speed

**Brand:** freegene
**Price:** $107.34
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock Thunderbolt 4 speeds with zero hassle—your SSD’s new power move.

## Quick Answers

- **What is this?** ACASIS 40Gbps M.2 NVMe SSD Enclosure with Aluminum for Thunderbolt 4/3/USB4 | Tool-Free Installation;Heat Sink; Noiseless Design;Supports 2280/2260/2242/2230 SSDs;40Gbps;Stable speed by freegene
- **How much does it cost?** $107.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/673402845-acasis-40gbps-m-2-nvme-ssd-enclosure-with-aluminum-thunderbolt)

## 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 40Gbps Speed:** Harness native USB4 & Thunderbolt 4/3 for near-instant 3GB file transfers—leave lag in the past.
- • **Cross-Platform Powerhouse:** Seamlessly compatible with M1/M2 Pro/Max Macs, Windows, and Linux—future-proof your workflow.
- • **Effortless Tool-Free Setup:** No screws, no drivers, just plug & play—perfect for busy pros on the move.
- • **Massive 8TB Capacity Support:** Expand your workspace with up to 8TB SSDs—store all your projects, games, and media without compromise.
- • **Silent, Rugged Aluminum Design:** Fanless passive cooling keeps your drive whisper-quiet and reliably cool during intense workloads.

## Overview

The ACASIS TBU405 Air is a premium 40Gbps M.2 NVMe SSD enclosure designed exclusively for native USB4 and Thunderbolt 4/3 ports. Featuring tool-free installation, a fanless aluminum heat sink for silent cooling, and support for up to 8TB SSDs, it delivers ultra-fast, reliable storage expansion compatible with M1/M2 Pro/Max Macs, Windows, and Linux systems. Ideal for professionals demanding seamless high-speed data transfers and rugged portability.

## Description

desertcart.com: ACASIS 40Gbps M.2 NVMe SSD Enclosure for Thunderbolt 4/3/USB4, with Tool-Free Installation, Aluminum Heat Sink & Noiseless Design, Supports 2280-2230 SSDs for M1/M2 Pro/Max. : Electronics

Review: Fantastic SSD enclosure! - I am blown away by the speeds that this SSD enclosure can deliver. I've got mine paired with a Samsung 990 PRO 4TB SSD and plugged into the Thunderbolt port of my Mac Studio. I'm seeing read/write speeds in the 2700 MB/s and 2600 MB/s range, which is so much faster than my previous 10 Gbps enclosure (which was achieving roughly 600-700 MB/s speeds). And this is with the SSD about 45% full. I use my system for video editing 4K content, and the scrubbing speed on my timeline has become instantaneous. I can quickly scrub through the timeline or jump to different parts of the video with ease... no lag anymore! Installation was super easy... just open the fully aluminum case, insert the SSD and rubber mounting plug, then push the SSD into the enclosure (no screws or screwdrivers needed). Close the cover and you're done. My Mac recognized the drive immediately. The enclosure can get warm (to slightly hot) when I'm rendering a long duration video, but that's expected of any SSD or hard drive. To keep the enclosure (and SSD) cooler, I keep the enclosure on top of my Mac Studio (which has an aluminum shell)..... this helps to dissipate heat a little better than if I were to place it on my wood desk surface. The enclosure looks great; it's sleek and minimalistic with cleanly milled heat-sink grooves. And the all-aluminum design is very-nicely machined and matches the design language of my Mac, awesome! I don't have a PC, but this is fully compatible on my Mac Studio running the latest MacOS.
Review: Very nice case for external SSDs, but get a fast enough drive! - Very nice case, but get a fast enough SSD unit for it. I originally had a "Crucial P3 PCIe Gen3 NVMe 1TB SSD, Up to 3,500MB" SSD in there, & that was not very fast. Time Machine backups were estimating at 20 hours! I replaced it with a "Seagate FireCuda 530R SSD 1TB Internal Solid State Drive - M.2 PCIe Gen4 ×4 NVMe 1.4, speeds up to 7400MB" & as you'll see in the picture, I am now getting speeds almost as fast as a Samsung EVO Plus SSD. In addition, I am going through a Caldigit Thunderbolt 4 dock, not plugged directly into my 2025 Mac Mini. So this device can definitely, with the right SSD, deliver the speed.

## Features

- Designed for USB4 & 40Gbps Ports: The TBU405 Air is engineered exclusively for the native USB4 and 40Gbps Type-C interface standard, standing out as a high-performance USB4 enclosure and 40gbps enclosure. This focused design ensures it delivers uncompromised, peak-performance data transfer speeds. You can fully leverage the maximum potential of your high-speed NVMe SSD for seamless workflows. To guarantee this experience, it is specifically compatible with native USB4 and other 40Gbps-enabled ports, and is not backward compatible with previous USB standards like USB 3.2, 3.0, or 2.0.
- Lightning Fast Transfers: Experience top-tier speed with this 40Gbps M.2 NVMe SSD enclosure, transferring large 3G files within 1 second, faster than most internal drives. It is engineered as a premier NVMe enclosure and efficient M.2 SSD enclosure (Note: different speed may vary 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. Working data, popular games, videos, and movies can be stored anytime and anywhere. (Note: SSD NOT INCLUDED)
- Tool-free Installation & Wide Compatibility: This versatile USB enclosure features a tool-free design. No screw or screwdriver needed, no additional driver required, plug and play. It's a convenient portable SSD enclosure that is perfectly suited for travel and business office use.
- Plug and Play: This M.2 NVMe Enclosure supports M1 Pro/Max Mac devices and iPad Pro.Compatible with Windows, macOS and Linux. Just plug and play without a driver.Our NVMe Enclosure supports hot-swapping without affecting the rest of the server's capabilities.
- Rugged, Silent & Reliable: The ACASIS SSD enclosure features a solid, fanless aluminum body with a curved surface. The design ensures effective passive cooling and exceptional durability. Enjoy completely silent operation and reliable data protection in any environment. This 40Gbps M.2 NVMe SSD enclosure comes with a two-year quality assurance. For warranty terms and detailed information, please refer to the product manual.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DD34LH8R |
| Best Sellers Rank | #60 in Enclosures |
| Brand | FREEGENE |
| Built-In Media | enclosure |
| Color | black |
| Compatible Devices | Laptop |
| Connectivity Technology | USB |
| Customer Reviews | 4.0 out of 5 stars 185 Reviews |
| Data Transfer Rate | 40 Gigabits Per Second |
| Enclosure Material | Aluminum |
| Hard Disk Form Factor | 22 Millimeters |
| Hardware Interface | Thunderbolt |
| Hardware Platform | Windows |
| Manufacturer | ACASIS |
| Material | Aluminum |
| Memory Storage Capacity | 8 TB |
| Mfr Part Number | 1 |
| Model Number | TBU405 Air |
| Supported Devices Quantity | 2 |
| UPC | 781108279634 |
| Warranty Description | 2 YEAR |

## Product Details

- **Brand:** FREEGENE
- **Color:** black
- **Hardware Interface:** Thunderbolt
- **Hardware Platform:** Windows
- **Material:** Aluminum

## Images

![ACASIS 40Gbps M.2 NVMe SSD Enclosure with Aluminum for Thunderbolt 4/3/USB4 | Tool-Free Installation;Heat Sink; Noiseless Design;Supports 2280/2260/2242/2230 SSDs;40Gbps;Stable speed - Image 1](https://m.media-amazon.com/images/I/61EsrlgsTgL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic SSD enclosure!
*by T***S on August 26, 2025*

I am blown away by the speeds that this SSD enclosure can deliver. I've got mine paired with a Samsung 990 PRO 4TB SSD and plugged into the Thunderbolt port of my Mac Studio. I'm seeing read/write speeds in the 2700 MB/s and 2600 MB/s range, which is so much faster than my previous 10 Gbps enclosure (which was achieving roughly 600-700 MB/s speeds). And this is with the SSD about 45% full. I use my system for video editing 4K content, and the scrubbing speed on my timeline has become instantaneous. I can quickly scrub through the timeline or jump to different parts of the video with ease... no lag anymore! Installation was super easy... just open the fully aluminum case, insert the SSD and rubber mounting plug, then push the SSD into the enclosure (no screws or screwdrivers needed). Close the cover and you're done. My Mac recognized the drive immediately. The enclosure can get warm (to slightly hot) when I'm rendering a long duration video, but that's expected of any SSD or hard drive. To keep the enclosure (and SSD) cooler, I keep the enclosure on top of my Mac Studio (which has an aluminum shell)..... this helps to dissipate heat a little better than if I were to place it on my wood desk surface. The enclosure looks great; it's sleek and minimalistic with cleanly milled heat-sink grooves. And the all-aluminum design is very-nicely machined and matches the design language of my Mac, awesome! I don't have a PC, but this is fully compatible on my Mac Studio running the latest MacOS.

### ⭐⭐⭐⭐⭐ Very nice case for external SSDs, but get a fast enough drive!
*by L***N on April 13, 2026*

Very nice case, but get a fast enough SSD unit for it. I originally had a "Crucial P3 PCIe Gen3 NVMe 1TB SSD, Up to 3,500MB" SSD in there, & that was not very fast. Time Machine backups were estimating at 20 hours! I replaced it with a "Seagate FireCuda 530R SSD 1TB Internal Solid State Drive - M.2 PCIe Gen4 ×4 NVMe 1.4, speeds up to 7400MB" & as you'll see in the picture, I am now getting speeds almost as fast as a Samsung EVO Plus SSD. In addition, I am going through a Caldigit Thunderbolt 4 dock, not plugged directly into my 2025 Mac Mini. So this device can definitely, with the right SSD, deliver the speed.

### ⭐ Unmounts when pushed hard
*by A***R on May 27, 2025*

Wish I could give this a better review. Seemed to work for awhile, but once I got deep into video editing it seems to overheat and unmount from my MacBook Pro M2 Max.

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-07-18*