--- product_id: 548727326 title: "ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum" brand: "acasis" price: "R4946" currency: ZAR in_stock: true reviews_count: 13 url: https://www.desertcart.co.za/products/548727326-acasis-40gbps-m-2-nvme-ssd-enclosure-with-cooling-fan store_origin: ZA region: South Africa --- # 40Gbps blazing transfer speed Dual-chip stability & USB4 compatibility Built-in cooling fan + aluminum shell ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum **Brand:** acasis **Price:** R4946 **Availability:** ✅ In Stock ## Summary > 🚀 Unlock Thunderbolt 4 speeds with cool, stable power anywhere! ## Quick Answers - **What is this?** ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum by acasis - **How much does it cost?** R4946 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/548727326-acasis-40gbps-m-2-nvme-ssd-enclosure-with-cooling-fan) ## 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 - • **Blazing 40Gbps Speed:** Transfer a 1GB file in just 4 seconds—lightning-fast workflow. - • **Dual-Chip Powerhouse:** JHL7440 + RTL9210B chips ensure rock-solid stability and max compatibility. - • **Universal Compatibility:** Seamlessly works with Mac M1/M2 Pro/Max, iPad Pro, Windows, macOS, and Linux. - • **Advanced Thermal Management:** Integrated cooling fan and aluminum casing keep your SSD cool under pressure. - • **Travel-Ready Compact Design:** Slim, pocket-sized enclosure perfect for on-the-go professionals. ## Overview The ACASIS 40Gbps M.2 NVMe SSD Enclosure delivers ultra-fast data transfer speeds up to 2805 MB/s read and 2734 MB/s write, supported by dual-chip technology for enhanced stability and heat management. Its built-in cooling fan and premium aluminum shell ensure sustained performance during heavy tasks like 4K video editing. Compatible with a wide range of SSD sizes and devices including Mac M1/M2 Pro/Max, iPad Pro, Windows, macOS, and Linux, this compact, travel-friendly enclosure is designed for professionals demanding speed, reliability, and portability. ## Description Why does the read and write speed drop below 1000Mb/S When the tested read speed of the drive is 2600–2800MB/s (close to the interface bandwidth limit). Write speed is drive-limited, affected by its controller chip, cache size and flash memory type. Is this enclosure compatible with MacBook Pro and Mac mini? Yes. This NVMe SSD enclosure is fully compatible with MacBook Pro, Mac mini. It is plug and play and does not require any drivers. Does it really support 40Gbps speed? Yes. When used with a Thunderbolt port and a compatible NVMe SSD, the enclosure supports up to 40Gbps data transfer speed. Actual speed may vary depending on the SSD and host device. Does this NVMe enclosure overheat during 4K video editing? The enclosure has a built-in switchable cooling fan and an aluminium housing, which helps keep the SSD at a stable temperature during heavy tasks like 4K video editing or large file transfers. On Windows systems, the read speed ranges from 1800–3000MB/s, while the write speed only reaches a few On Windows (with Thunderbolt driver installed): Disk Management → Right-click drive → Properties → Policies → Enable Better Performance (Read) → Confirm and test read speed. ACASIS develop and market a wide range of computer accessories & peripherals, including SSD Enclosues, USB Hubs, USB Docking Station, Capture Card and more. To make top products, we have established a professional team including top designer, top engineer team. Our vision is to bring a better using experience for digital products users. Keep working to supply a wide range of well-designed, superior quality products. ## Features - Quick clarification on 40 Gbit/s: The read/write speed of the ACASIS 40 Gbit/s NVME enclosure can reach up to 2805 MB/s / 2734 MB/s (the speed may vary depending on the system). Transferring a 1 GB file only takes 4 seconds. This hard drive enclosure is also backward-compatible with USB 3.2/3.1/3.0/2.0 and SSD sizes 2230, 2242, 2260, 2280 B+M, M-Key. - UPGRADED TBU405 PRO BUILT-IN COOLING FAN: We add a Built-in Cooling Fan and heat dissipation holes to the aluminum alloy shell to acheive better heat dissapation.（Note：SSD NOT INCLUDE）Moreover, the combination of the thermal conductive pad and the high-quality aluminum casing effectively promotes heat conduction and heat dissipation. This enables stable high-speed data transfer to be maintained over a longer period. - Dual chips, namely the JHL7440 chip and the RTL9210B chip: Compared to products from other manufacturers with a single chip, the advantage of our product lies in its dual-chip control. SSD enclosure is more stable and reliable, has better heat dissipation performance, and is fully compatible with USB 4/3.2/3.1/3.0/2.0 interfaces. (Note: SSD is not included.) - Universal compatibility: This M.2 NVMe enclosure supports M1 Pro/Max Mac devices and iPad Pro. It is compatible with Windows, macOS, and Linux. It is compatible with USB 4/3.2/3.1/3.0/2.0 and SSD sizes 2230, 2242, 2260, 2280 B+M, M-Key with respective speed limits to meet a variety of professional and daily needs. - M.2 NVMe SSD Enclosure: The M.2 NVMe hard drive enclosure is suitable for NVMe SSDs with M-Key/M+B Key, with capacities of up to 8 TB, and the applicable sizes are 2230 2242 2260 2280. Tip: If your hard drive is new, m.2 enclosure will need to be partitioned before use. And the hard drive is not included in the package. - POCKET SIZE TRAVEL-FRIENDLY: Nvme ssd enclosure compact design make TBU 405 PRO easy to be carried in a handbag or pocket, nice for travel &business trips. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0C8CTW8M6 | | Best Sellers Rank | 30,417 in Computers & Accessories (See Top 100 in Computers & Accessories) 139 in Enclosures | | Box Contents | Thunderbolt Cable | | Brand Name | Acasis | | Colour | Midnight Blue | | Compatible Devices | Mac mini M4, Mac mini M4 Pro | | Country Of Origin | China | | Customer Reviews | 4.3 4.3 out of 5 stars (453) 4.3 out of 5 stars | | Data Transfer Rate | 40 Gigabits Per Second | | Enclosure Material | Aluminium | | Hardware Interface | USB | | Hardware Platform | Windows | | Item Dimensions L X W X H | 9.9L x 9.9W x 1.4H centimetres | | Item Highlight | For M1/M2 Pro/Max. Supports 2280/2260/2242/2230 B+M/M-Key SSDs. USB 3.2/3.1/3.0/2.0 compatible | | Item Weight | 0.32 Kilograms | | Manufacturer | ACASIS | | Manufacturer Part Number | TBU405PROM1 | | Memory Storage Capacity | 8.01 TB | | Model Number | TBU405PROM1 | | Network Connectivity Technology | Thunderbolt, USB | | Number Of Items | 1 | | Number Of Packs | 1 | | Product Warranty | 2 | | Supported Devices Quantity | 1 | | The Standard Size Of The Hard Drive Or The Bay The Hard Drive Is Compatible With In Inches | 2.5 Inches | | Unit Count | 1.0 count | ## Product Details - **Brand:** Acasis - **Colour:** Midnight Blue - **Hardware interface:** USB - **Hardware platform:** Windows - **Product dimensions:** 9.9L x 9.9W x 1.4H centimetres ## Images ![ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum - Image 1](https://m.media-amazon.com/images/I/71oyj5onDqL.jpg) ![ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum - Image 2](https://m.media-amazon.com/images/I/71tbCpHHnhL.jpg) ![ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum - Image 3](https://m.media-amazon.com/images/I/71QLnxyfezL.jpg) ![ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum - Image 4](https://m.media-amazon.com/images/I/81CSeFPYsoL.jpg) ![ACASIS 40Gbps M.2 NVMe SSD Enclosure with Cooling Fan Aluminum - Image 5](https://m.media-amazon.com/images/I/71mwzl35e4L.jpg) ## Questions & Answers **Q: Why does the read and write speed drop below 1000Mb/S** A: When the tested read speed of the drive is 2600–2800MB/s (close to the interface bandwidth limit). Write speed is drive-limited, affected by its controller chip, cache size and flash memory type. **Q: Is this enclosure compatible with MacBook Pro and Mac mini?** A: Yes. This NVMe SSD enclosure is fully compatible with MacBook Pro, Mac mini. It is plug and play and does not require any drivers. **Q: Does it really support 40Gbps speed?** A: Yes. When used with a Thunderbolt port and a compatible NVMe SSD, the enclosure supports up to 40Gbps data transfer speed. Actual speed may vary depending on the SSD and host device. **Q: Does this NVMe enclosure overheat during 4K video editing?** A: The enclosure has a built-in switchable cooling fan and an aluminium housing, which helps keep the SSD at a stable temperature during heavy tasks like 4K video editing or large file transfers. **Q: On Windows systems, the read speed ranges from 1800–3000MB/s, while the write speed only reaches a few** A: On Windows (with Thunderbolt driver installed) Disk Management → Right-click drive → Properties → Policies → Enable Better Performance (Read) → Confirm and test read speed. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Rock stable and fast! *by on Reviewed in the United Kingdom 26 September 2025* Excellent enclosure - easy assembly, speed is excellent - around 3100MB/2900MB R/W. Temperatures have been great even WITHOUT turning on the inbuilt fan (when mac is under GPU load running LLM related workload - see screenshot):SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)Critical Warning: 0x00Temperature: 32 CelsiusAvailable Spare: 100%Available Spare Threshold: 10%Percentage Used: 0%Data Units Read: 1,977,041 [1.01 TB]Data Units Written: 1,804,176 [923 GB]Host Read Commands: 20,136,510Host Write Commands: 14,040,961Controller Busy Time: 230Power Cycles: 52Power On Hours: 59Unsafe Shutdowns: 4Media and Data Integrity Errors: 0Error Information Log Entries: 0Warning Comp. Temperature Time: 0Critical Comp. Temperature Time: 0Turning on the fan only lowered the temp by around 2-3c.SSD used: Kingston NV3 NVMe PCIe 4.0 Internal SSD 2TB M.2 2280-SNV3S/2000GOne thing to note is that is compatible with mac sequoia running as a start up disk! Rock stable! ### ⭐⭐⭐⭐ Speeds isn't what I expected, though it could be my setup *by on Reviewed in the United Kingdom 16 January 2024* Needed some extra hard drive space without paying the Apple Tax on SSD so after researching wnet for this along with a 4TB Crucial P3 stick of SSD. I'm getting about 1400MB/s write and 2100MB/s read, and I was hoping for more in the region of just over 2000MB/s write, consdering the set up and via Thunderbolt 4. However, it may well be due to it being plugged into a Caldigit TS4 dock and also having a Thunderbolt 3 monitor attached as well as numorous other hardware attached to it, which is bound to reduce the bandwith, but that still appears to be slow. Strangely when I look at the system report, it is connecting at Thunderbolt 3 speeds. I am going to change things around to see if I can improve those speeds by plugging direct into the MacBook, which I have tried before, but still not getting the speeds I expected. As for putting it together, that was a breeze. From unboxing to up and running was 5 - 10 minutes max and I have had no issues withoverheating, with the fan being on most of the time, you dont really notice that much noise. It was stilll a cost effective way to add SSD to the Mac and in farness, even the speeds I am geting now is fine for what I am using it for, mainly for FCP and theres been no issues yet, but be good to improve them. Price for the enclosure was also good, on offer at the time, which often happens, look for those vouchers and the build is good, nice and sturdy, though it can possibly be a bit to eay for the top to become loose, but I dont plan on using it as a portable drive but more of a permenant fixture with the dock. I'm 75% happy with it, though if I was building anoter one, which i probably will, I'd probably try a different brand just for comparision of speed. ### ⭐⭐⭐⭐⭐ Works great *by on Reviewed in the United Kingdom 28 November 2023* I inserted a 4TB Crucial P3 Plus SSD into this and it was fairly simple to set up. It is very solidly build and has a premium feeling weight to it.The included fan can be useful for large transfers and it is very quiet, barely audible more than 2 meters away. The speeds are great too, often time averaging around 2GB per second. One thing to note is that this enclosure is more aimed at a static setup where you don't want to be swapping drives too often as it only includes two thermal pads which are needed for optimal performance but tricky to take off once installed.Overall, I recommend it and am happy with the purchase. ## Frequently Bought Together - ACASIS 40Gbps M.2 NVMe SSD Enclosure, with Cooling Fan, M.2 Enclosure 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 NVMe M.2 SSD, 2 TB, PCIe 4.0, 7,450 MB/s read, 6,900 MB/s write, Internal SSD, For gaming and video editing, MZ-V9P2T0BW --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/548727326-acasis-40gbps-m-2-nvme-ssd-enclosure-with-cooling-fan](https://www.desertcart.co.za/products/548727326-acasis-40gbps-m-2-nvme-ssd-enclosure-with-cooling-fan) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-04*