---
product_id: 727932807
title: "ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key"
brand: "freegene"
price: "€ 7797.67"
currency: EUR
in_stock: false
reviews_count: 6
url: https://www.desertcart.sk/products/727932807-acasis-40gbps-m-2-nvme-ssd-enclosure-for-tbu-405
store_origin: SK
region: Slovakia
---

# 40Gbps ultra-fast transfer Compact, travel-ready design Universal USB4/Thunderbolt compatibility ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key

**Brand:** freegene
**Price:** € 7797.67
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Unlock your data’s full potential with ACASIS 40Gbps NVMe speed!

## Quick Answers

- **What is this?** ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key by freegene
- **How much does it cost?** € 7797.67 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/727932807-acasis-40gbps-m-2-nvme-ssd-enclosure-for-tbu-405)

## 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 data transfers up to 2805MB/s, perfect for power users and creatives on the go.
- • **Plug & Play Simplicity:** Seamlessly compatible with M1 Pro/Max Macs, iPad Pro, Windows, and Linux—no drivers needed, just instant access.
- • **Next-Level Compatibility:** Supports USB4, Thunderbolt 3/4, and legacy USB standards, ensuring future-proof connectivity across all your devices.
- • **Advanced Thermal Management:** Dual Intel-certified chips deliver stable performance with excellent heat dissipation, so your SSD stays cool under pressure.
- • **Sleek & Portable Powerhouse:** Lightweight aluminum build fits effortlessly in your bag or pocket—ultimate mobility for busy professionals.

## Overview

The ACASIS 40Gbps M.2 NVMe SSD Enclosure (TBU405) is a compact, aluminum-constructed external enclosure designed for M.2 2280 B+M M-Key SSDs. Featuring Intel JHL7440 dual-chip control, it supports ultra-fast data transfer speeds up to 40Gbps via USB4 and Thunderbolt 3/4 interfaces. Compatible with Mac M1 Pro/Max, iPad Pro, Windows, and Linux systems, it offers plug-and-play convenience and advanced heat dissipation for reliable, high-performance storage on the go.

## Description

ACASIS 40Gbps M.2 NVMe SSD Enclosure

Review: 「MP600 PRO XT CSSD-F8000GBMP600PXT」を内蔵して使っています。8TB と正常に認識されています。このNVMEは両面実装なので、その配慮もあると、もっと良かったです。
Review: Works great speeds nearly 4,000Gbps great value

## Features

- JHL7440 INTEL Certified Chip: Dual chip control, more stable and reliable, excellent heat dissipation, fully compatible with Thunderbolt 3/4, USB 4/3.2/3.1/3.0/2.0. (Note: SSD is not included)
- Lightweight high speed 40Gbps Speed testing on the MacBook Pro Samsung 980 EVO Plus ACASIS 40G bps nvme enclosure read/write speeds up to 2805MB/s/s/2734MB/s (speeds may vary by system)
- SMALLER AND PORTABLE: This compact design makes the Acasis M.2 nvme enclosure easy to carry in your handbag or pocket, perfect for travel or business trip
- Wide Compatibility: Intel JHL7440 chip with built-in ACASIS M.2 NVMe SSD enclosure, adopts dual chip master control, and has a 40Gbps Type-C interface. NVMe Enclosure supports USB 4/3.2/3.1/3.0/2.0 and each speed limit to meet your various work and daily needs
- PLUG & PLAY: This M.2 NVMe enclosure supports M1 Pro/Max Mac devices and iPad Pro. Compatible with Windows, macOS, Linux. Plug and Play without any driver. Our NVMe enclosures support hot-swapping without affecting other functions of the server

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Aluminum |
| Item Weight | 0.16 Kilograms |
| Memory Storage Capacity | 8 TB |
| Compatible Devices | Desktop, Gaming Console |
| Hard Disk Form Factor | 2.5 Inches |
| Max Number of Supported Devices | 1 |
| Data Transfer Rate | 600 Megabytes Per Second |
| Manufacturer | FREEGENE |
| Color Name | Space Gray |
| Batteries Included | No |
| Batteries Required | No |
| Item Model Number | TBU405 |
| Included Components | Thunderbolt Cable |
| Special Features | Portable |
| Connectivity Technology | Nvme,Thunderbolt,Usb |
| Product Dimensions | 10.06 x 4.88 x 1.52 cm; 159 g |

## Product Details

- **Brand:** FREEGENE
- **Color:** Space Gray
- **Hardware Interface:** USB
- **Hardware Platform:** Window
- **Product Dimensions:** 10L x 6.1W x 1.5H cm

## Images

![ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key - Image 1](https://m.media-amazon.com/images/I/61cVriN-xiL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key - Image 2](https://m.media-amazon.com/images/I/61xgcu6YvPL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key - Image 3](https://m.media-amazon.com/images/I/717zd9HKtuL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key - Image 4](https://m.media-amazon.com/images/I/71EErd3LZbL.jpg)
![ACASIS 40Gbps M.2 NVMe SSD Enclosure for TBU 405 M1 M2 Pro/Max, Supports USB4/3.2/3.1/3.0/2.0 SSD Size 2280 B+M M-Key - Image 5](https://m.media-amazon.com/images/I/71HczCYLl3L.jpg)

## Questions & Answers

**Q: Is this the newest model or is there a newer model out?**
A: who can tell what's truthful, with all this bogus 40Gbps USB4 marketing documentation.
the ACASIS site presently states this TBU405 contains "Intel® JHL7440 Thunderbolt™3 with REALTEK® RTL9210B"
that USB interface chip RTL9210B is USB 3.1 • 10Gbps.
but the Q&A here states it's a different chip JMS583 with that same lowly USB 3.1 • 10Gbps.

the ACASIS tool-less model TBU401 is now shipping with TBU401e on the box.  "e".
but that Amazon sales page and the ACASIS online marketing page don't mention anything about that "e" model update.
it's also documented to contain a RTL9210B chip.  but a video shows it formerly contained a JMS583.
https://www.amazon.com/ask/questions/Tx220PG5HNIY0I3

so.  what you see here might NOT be what you get.
.

**Q: Looking for those who have tried a wd sn850x gen4 in this tbu-405 enclosure. all work well? any performance drop / fails? does it handle gen4 well?**
A: based on below details
• there is adequate power supplied by TB.
• but insufficient power from native USB.

google online image of this WD SN850X sticker shows 3.3V x 2.8A = 9.24 watts.
M.2 specification 1.0 states its max power limit is 8.25 watts.
that's a little puzzling isn't it?

this enclosure's Intel JHL7440 Thunderbolt3 chip datasheet average TDP power is stated to be 2.4W
exactly how much more power this enclosure requires isn't disclosed.
9.24 + 2.4 = 11.64 watts

native USB4 per published specification can supply only 7.5W
(for x2 lane, only 4.5W for USB x1 lane)
Thunderbolt3/4 specs are not publicly available, but unqualified online claims say 15W


------------------------------------
regarding speed of this Gen4 7300 MB/s SSD
it can get only approx 2750 MB/s in this Gen3 enclosure.

if you're happy with that substandard performance from Gen4, very good
but it's not even Gen3 top speed.

**Q: What is the difference between acasis tbu401 & tbu405?**
A: according to the Seller in that ad, the two models have the exact same chipset.
so the functional difference would seemingly be only that the 401 is tool-less.

https://www.amazon.com/ask/questions/Tx220PG5HNIY0I3

**Q: Compatible with Samsung 980 or 990 Pro?**
A: Yes, I have the 1TB Samsung 980 Pro running  in my Acasis case  with no problems on either MacBook Pro or Mac Mini Pro.

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by A***ー on August 1, 2023*

「MP600 PRO XT CSSD-F8000GBMP600PXT」を内蔵して使っています。8TB と正常に認識されています。このNVMEは両面実装なので、その配慮もあると、もっと良かったです。

### ⭐⭐⭐⭐⭐ Review
*by A***R on August 16, 2025*

Works great speeds nearly 4,000Gbps great value

### ⭐⭐⭐⭐⭐ Review
*by R***A on July 6, 2025*

I’m thoroughly impressed with the ACASIS 40Gbps M.2 NVMe SSD Enclosure. The speed is outstanding—file transfers are incredibly fast and efficient, exactly what you’d expect from a 40Gbps-capable device. I’ve used it with several SSDs, and performance has been consistently smooth and reliable. The aluminum build is solid and professional, keeping the drive cool even during extended use. Setup was truly plug-and-play, and it worked seamlessly across my Mac and Windows devices. After 6 months of regular use, I can confidently say that I haven’t encountered a single issue. Whether for backups, large file transfers, or portable storage, this enclosure delivers top-tier performance and durability. Highly recommended for anyone who wants reliable, high-speed external SSD access.

## Frequently Bought Together

- ACASIS 40Gbps M.2 NVMe SSD Enclosure, TBU405 for M1 M2 Pro/Max, Compatible with Thunderbolt 4/3/USB3.2/3.1/3.0/2.0, M.2 Enclosure Support SSD 2280/2260/2242/2230 B+M M-Key
- 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 Slovakia*
*Store origin: SK*
*Last updated: 2026-02-23*