---
product_id: 650028655
title: "ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows"
brand: "freegene"
price: "€ 6.10"
currency: EUR
in_stock: false
reviews_count: 7
url: https://www.desertcart.hr/products/650028655-acasis-40gbps-m-2-nvme-ssd-enclosure-cooling-fan-compatible
store_origin: HR
region: Croatia
---

# 40Gbps ultra-fast data transfer Active cooling with built-in fan Dual 8K/4K monitor support ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows

**Brand:** freegene
**Price:** € 6.10
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Unlock your creative potential with the ultimate dual-bay NVMe powerhouse!

## Quick Answers

- **What is this?** ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows by freegene
- **How much does it cost?** € 6.10 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/650028655-acasis-40gbps-m-2-nvme-ssd-enclosure-cooling-fan-compatible)

## 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:** Experience lightning-fast NVMe SSD transfers that keep your workflow seamless and efficient.
- • **Next-Level Cooling Design:** Stay cool under pressure with an aluminum chassis and built-in fan ensuring optimal thermal management.
- • **Dual 8K & 4K Monitor Expansion:** Elevate your multitasking with support for two high-res displays—perfect for creative pros and managers alike.
- • **Versatile Software RAID Options:** Customize your storage with RAID 0, 1, or JBOD for unbeatable performance, redundancy, or capacity.
- • **Universal Thunderbolt 3/4 & USB4 Compatibility:** Plug into the future with broad device support, certified stability, and power delivery up to 100W.

## Overview

The ACASIS TBU405PRO MAX is a premium 6-in-1 dual-bay M.2 NVMe SSD enclosure delivering ultra-fast 40Gbps data transfer speeds. It supports Thunderbolt 3/4 and USB4, dual-monitor output up to 8K, and flexible software RAID configurations for enhanced performance and data security. Featuring an aluminum body with active cooling, it ensures reliable operation during intensive workloads, making it ideal for professionals seeking high-capacity, high-speed storage expansion.

## Description

desertcart.com: ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows : Electronics

Review: TB4 speed. Excellent cooling. Use RAID-0 for max speed. Daisy chaining works. - I am using a pair of these SSD enclosures to provide 4TB (main data storage) and 8TB (TimeMachine backups). I have these guys configured as RAID-0 storage for speed. Speed is > 2GB/sec and < 3GB/sec for large sequential file copying. I wanted to keep costs down, so instead of getting TB5 enclosures and TB5 rated SSD chips, I got the less expensive TB4 versions. Plenty fast enough for my purposes. When push comes to shove, TB4 is just as good as TB5 for random access I/O - which is what 90% of my workload consists of. Make sure to turn on the fans (there is a button). When I ran my first TimeMachine backup, the 8TB enclosure got hit. The fan cooled it off VERY nicely. These enclosures can be daisy chained. I have the 8TB connected after the 4TB. Very nice. Dead quiet. Have been using these guys for about 2 months with no issues. Value for $$$ is excellent. I recommend for anyone serious about using SSD for their main data storage and first level backups. I have used these guys on a 27” iMac and am currently using them on a Mac Studio.
Review: CATASTROPHIC FAILURE - I've used these before on different productions. I work in tv/film and shuttling large files as fast as possible is key. I bought one of my own after seeing success with 2 others from various production houses. Sadly, mine failed day 2 and fried 2x 8TB WDSN850X M.2 drives with it. I transferred 15.5TB on it and had complete catastrophic failure after 1 day of use. The enclosure while idling got EXCESSIVELY hot. Like BEYOND acceptable, warm or hot to the touch doesn't even come close to how dangerously hot this thing got just idling. The drives were no longer mountable, ssd2 slot was cranking out heat... Disk utility told me 1 of the drive bays was not readable. Then sure enough eventually SSD1 slot failed. Sad. What was bizzare to me as well was this thing would not be recognized by ANY windows machines, only Mac. Something else I'll have to look in to. I'm hoping this failed unit was a fluke. Bought another and will be testing it out. So far, not a great look. Mixed feelings as I've used 2 others without problems.

## Features

- 【6-In-1 ACASIS Dock With 40gbps Dual-bay nvme enclosure】TBU405PRO MAX features 1*HDMI 2.0, 1*USB-A 3.1, 2*USB-C 40Gbps, 1*PD 100W. Whether it's expanding screens, computer interfaces, or memory, this product Perfect for all your creative pursuits: saving, creating and editing. ⚠️⚠️⚠️INCOMPATIBLE WITH NON-THUNDERBOLT 3/4 HOST DEVICES.
- 【Dual Monitor Display】Expand up to two screens with resolutions up to 8K at 60Hz for single-screen use and 4K at 60Hz for dual-screen use. NOTE: Please check that your computer‘s USB-C port supports DP Alt Mode for video output.
- 【Supports software RAID Configurations】This 40Gbps dual-bay enclosure supports RAID 0 (up to 2x capacity, fast 40Gbps speed,⚠️⚠️⚠️For optimal performance, we recommend using identical drives), RAID 1 (mirrored, smallest drive capacity), and JBOD (concatenated, capacity combined, macOS only). in Total, software RAID offers flexible, cost-effective options for performance, data protection, and storage expansion.
- 【Efficient Heat Dissipation】Built-in Fans and aluminum alloy body with metal thermal conduction slots ensure optimal temperature control during operation. ⚠️⚠️⚠️NOT SUITABLE WITH DRIVES THAT HAVE A HEATSINK ATTACHED.
- 【UNIVERSAL COMPATIBILITY】Intel Certified chip control, more stable and reliable, better heat dissipation, fully compatible with thunderbolt3/4, USB 4 at respective speed limits to meet a variety of work and daily needs.
- 【Internal Storage Expansion 】Our Mac Mini Dock supports 8TB M.2 SSD with read and write speed limit up to 1500 MB/s per drive or accelerate to 2000-2400 MB/s with dual NVMe SSDs in RAID 0 and sizes 2230/2242/2260/2280 for convenient storage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9Y2TVV9 |
| Best Sellers Rank | #725 in Enclosures |
| Compatible Devices | Desktop, Laptop |
| Customer Reviews | 3.5 3.5 out of 5 stars (59) |
| Data Transfer Rate | 40 Gigabits Per Second |
| Date First Available | July 23, 2024 |
| Item Weight | 1.57 pounds |
| Item model number | TBU405 PRO MAX |
| Manufacturer | FREEGENE |
| Max Number of Supported Devices | 2 |
| Memory Storage Capacity | 16 TB |
| Package Dimensions | 6.22 x 4.61 x 3.39 inches |
| UPC | 781108279610 |

## Product Details

- **Brand:** FREEGENE
- **Color:** blue
- **Hardware Interface:** Solid State Drive, USB, USB 2.0
- **Hardware Platform:** ARM
- **Material:** Aluminum

## Images

![ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows - Image 1](https://m.media-amazon.com/images/I/71anh8vcsNL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows - Image 2](https://m.media-amazon.com/images/I/71-HpDKRUkL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows - Image 3](https://m.media-amazon.com/images/I/71h-TDfQW4L.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows - Image 4](https://m.media-amazon.com/images/I/71rUV0GbnrL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows - Image 5](https://m.media-amazon.com/images/I/71TlvbbU8uL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ TB4 speed. Excellent cooling. Use RAID-0 for max speed. Daisy chaining works.
*by B***N on April 14, 2025*

I am using a pair of these SSD enclosures to provide 4TB (main data storage) and 8TB (TimeMachine backups). I have these guys configured as RAID-0 storage for speed. Speed is > 2GB/sec and < 3GB/sec for large sequential file copying. I wanted to keep costs down, so instead of getting TB5 enclosures and TB5 rated SSD chips, I got the less expensive TB4 versions. Plenty fast enough for my purposes. When push comes to shove, TB4 is just as good as TB5 for random access I/O - which is what 90% of my workload consists of. Make sure to turn on the fans (there is a button). When I ran my first TimeMachine backup, the 8TB enclosure got hit. The fan cooled it off VERY nicely. These enclosures can be daisy chained. I have the 8TB connected after the 4TB. Very nice. Dead quiet. Have been using these guys for about 2 months with no issues. Value for $$$ is excellent. I recommend for anyone serious about using SSD for their main data storage and first level backups. I have used these guys on a 27” iMac and am currently using them on a Mac Studio.

### ⭐ CATASTROPHIC FAILURE
*by G***G on February 4, 2025*

I've used these before on different productions. I work in tv/film and shuttling large files as fast as possible is key. I bought one of my own after seeing success with 2 others from various production houses. Sadly, mine failed day 2 and fried 2x 8TB WDSN850X M.2 drives with it. I transferred 15.5TB on it and had complete catastrophic failure after 1 day of use. The enclosure while idling got EXCESSIVELY hot. Like BEYOND acceptable, warm or hot to the touch doesn't even come close to how dangerously hot this thing got just idling. The drives were no longer mountable, ssd2 slot was cranking out heat... Disk utility told me 1 of the drive bays was not readable. Then sure enough eventually SSD1 slot failed. Sad. What was bizzare to me as well was this thing would not be recognized by ANY windows machines, only Mac. Something else I'll have to look in to. I'm hoping this failed unit was a fluke. Bought another and will be testing it out. So far, not a great look. Mixed feelings as I've used 2 others without problems.

### ⭐⭐⭐⭐⭐ Lightroom backup
*by L***7 on October 24, 2025*

Has been working great so far. Very fast and does exactly what I wanted and that was backup my Lightroom files. Would recommend to anyone who has Thunderbolt 3 or 4. The fan work great and does help keep the hot running Samsung Pros cooler.

## Frequently Bought Together

- ACASIS 40Gbps M.2 NVMe SSD Enclosure, Cooling Fan, Compatible Thunderbolt 4/3/USB 4.0, Support SSD B+M M-Key, Dual-Bay SSD Enclosure Dual Monitor Support Software RAID, 2 USBC 40Gbps for M1/M2/Windows
- Samsung 990 PRO SSD 4TB PCIe 4.0 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-V9P4T0B/AM
- WD_BLACK 8TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,200 MB/s - WDS800T2X0E

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-19*