- Express 1M2 40Gb/s Portable NVMe SSD USB4 (Thunderbolt Compatible/USB-C) Ultra Fast External SSD Drive with Aluminum Heat Sink Enclosure (Enclosure Only)

I am using this with a 2021 M1-Max Macbook Pro, paired with the Playstation Drive, the Western Digital Black SN850X 8TB ! IMPORTANT NOTE! I had to return the SN850X with heatsink, as you must get the naked version for use with this drive! Due to true Thunderbolt 4 support, this is the fastest external drive I've ever had with my Mac, sustaining 3 GB/sec read+write! Before this, the best I achieved was 1TB/second using those USB 3.2 drives. And unlike with a lot of ready made external drives, this one was easily formatted and partitioned in Disk Utility, with no special hoops to jump through. It's worth addressing that the size issue is absolutely not bad at all. Yes, this is about twice the size of a compact external SSD, but for true perspective, it is smaller than my iPhone 16 Pro, and because it's a sturdy aluminum case, you can stash it as is in your backpack. I use this drive for very large backups, and during my initial backup of a 3.8TB folder, which took over a half hour due to having over 5 million files, the case definitely got hot. Not serious burn hot, but "I don't really want to hold this in my hand" hot. I do not consider this an issue, as future backups will be deltas, and what you get is pure silence. ( There aren't many high performance 8TB drives on the market, but I trust the SN850 to be reliable, due to its extensive track record with the Playstation 5, and it was the second cheapest 8TB SSD I found ). All in all, I think OWC really knocked it out of the park with this external drive! For a single external SSD, this is a no brainer as the best possible choice! :)

I switched to this enclosure after having issues with a cheaper one from China that kept disconnecting randomly. This one completely solved the problem. I’m using it with a WD Black SN850X on a Mac (M4 Pro), and I’m getting around 3000MB/s+ in real-world speeds. Performance has been stable with no dropouts or disconnects. The design looks clean and premium, and the build quality feels solid and well-made. It does get warm under load, but heat management seems well controlled. Overall, this enclosure did exactly what I needed — fixed my original issue and delivered reliable, fast performance. Very satisfied with the purchase.

If you’re like me and edit photos and videos for a living while also not wanting to overspend on Apple’s higher storage tiers, this is a godsend! My previous enclosure for a 4TB SSD was an ORICO 40Gbps model with a fan. It was among the first of the 40gbp models at the time, but problems began immediately when using it on my Mac. It would disconnect multiple times, only stopping after I manually ejected and reconnected the drive. This put my video and image files at serious risk as anyone in our line of work would know, but I brushed it off as a design quirk until I discovered the real issue. Overheating. The ORICO would get so hot that it could literally burn you if you touched the metal top of its plastic shell. My breaking point came when, in the middle of an edit in Final Cut Pro, the drive disconnected yet again. That was when I decided to cut my losses, wrap it up, and search for the fastest, most reliable solution i can find. I'm happy to say that search ended with this OWC enclosure and honestly, I couldn’t be happier. Not only does it do exactly what it’s supposed to, but I can finally work without worrying about disconnects or losing my files. The solid metal body and finned design act as a massive heatsink, pulling heat away from the SSD and dissipating it naturally. This keeps the drive safe from overheating, prevents thermal throttling, and ensures I can take FULL advantage of my SSD’s maximum performance. Also while yes it goes get warm, you won't have to worry about burning yourself like the old drive I had. All this mind you, is working without a fan! That's how good the heat management on this thing is! Design-wise its's perfectly matched to my M4 Pro Mac Mini setup, it's small, and lightweight. You don't need extra software or drivers that are needed to run it, you just plug it in and it shows up as a storage device on Mac. The only setup required on your end is applying the thermal tape so it makes solid contact with both the SSD chips and the enclosure. It's nice and thick so you know its going to make full contact on both parts. This is my first OWC product, and it certainly now won’t be my last. If I could give it 10 stars, I would!!!

Whilst expensive, it absolutely delivers. I have a good consistent speed with no speed throttling due to thermal constraints. Everything else is as it states in the spec I used this on a M4 mini and can confirm 3200 as quoted.

This OWC Express 1M2 is a fantastic enclosure. It's incredibly small and portable, making it easy to toss into a backpack pocket. Paired with the Samsung 990 Pro 4TB SSD, the performance is flawless. I've been editing 4K video in Final Cut Pro on my M1 Max Mac Studio in real-time, and I've experienced zero slowdowns—a huge step up from my previous drives. While it does get noticeably warm under heavy load, it maintains excellent functionality and speed. It also feels very durable, giving me peace of mind when carrying it between home and the office. Highly recommend this combination for demanding creative work!

Muazzam bir ürün, aldığım en iyi thunderbolt 4 kutusu diyebilirim. M1 max çipli mac studio'da, 4 tb samsung 990 pro ile kullanıyorum. Vaadettigi hızları sonuna kadar sağladı. Fiyatı biraz pahalı ama hazır bir ssd alsanız hem daha az performans alırsınız hem de daha fazla ücret ödersiniz, hem de bunda olduğu gibi içindeki m2 değiştirebilir olmaz. Tek eksi yanı boyutu biraz büyük ama zaten genellikle sabit durduğu için benim açımdan büyük bir sorun değil. Şiddetle tavsiye ediyorum!

Cosa dire? Il punto di forza non è il prezzo, ma al giorno d'oggi trovare dei prodotti che aderiscono al 100% alle prestazioni e ai dettagli dichiarati dal produttore, è diventato qualcosa di raro che deve essere premiato, con una buona recensione e 5 stelle, in particolare su Amazon e altri marketplace analoghi! Prima dell'acquisto ho controllato le specifiche sul sito di OWC, non c'è un dettaglio che non sia aderente alla descrizione (o migliore), a partire dalle prestazioni specificate espressamente per vari modelli di computer di riferimento. In pratica, l'intero case è un dissipatore in alluminio che mantiene i drive a temperature ottimali senza alcun rumore, grazie all'assenza di ventole attive; il pad termico in silicone è già installato, è sufficiente inserire il drive NVMe e avvitare le 3 viti per completare l'installazione; particolare aggiuntivo che mostra attenzione ai dettagli: OWC fornisce alcuni "piedini" gommati da attaccare sotto al case per evitare sfregamenti e rumori fastidiosi, isolando ulteriormente il case dalla superficie su cui è posizionato. Come mostrato nello screenshot, ho raggiunto circa i 3.5 GB/s sia in scrittura che in lettura, valori addirittura maggiori di quelli dichiarati dal produttore (probabilmente dovuti al drive, più performante di quello utilizzato nei test ufficiali). Il led di stato può essere configurato in modalità "normale", "dim" (luce soffusa) o "spento", attraverso uno switch hardware interno (levetta da spostare), ulteriore dettaglio che in applicazioni specifiche può risultare interessante. Considerando che ho potuto acquistare il case con 4 anni di "garanzia estesa" di Amazon, oltre ai 2 anni di garanzia offerti dal produttore, ho finalmente la sensazione di aver speso soldi per un prodotto di alta qualità.

I recently purchased the OWC Express 1M2 NVMe Thunderbolt External Drive, and I am beyond impressed! This drive is a game-changer for anyone who needs fast, reliable external storage. The speed is mind-blowing — I'm consistently getting read and write speeds that far surpass anything I’ve experienced with other external drives. The Thunderbolt connectivity ensures lightning-fast data transfer, whether I'm editing large video files or working with heavy datasets. It's perfect for video editors, photographers, or anyone who needs high-performance storage for demanding tasks. The compact design is sleek and portable, making it easy to take with me on the go. I also appreciate the sturdy build quality, which gives me confidence that it's built to last. Setting it up was a breeze, and I had no issues with compatibility on my MacBook Pro and Mac Mini M4. It also stays cool even during extended use, with no noticeable slowdowns or overheating. Overall, this external drive is a fantastic investment. If you're looking for fast, reliable storage with excellent performance, I highly recommend the OWC Express 1M2!