OWC 4TB Express 1M2 40Gb/s Portable NVMe SSD USB4 (Thunderbolt Compatible/USB-C) Ultra Fast External SSD Drive with Aluminum Heat Sink Enclosure

I Wish I’d Known About This Before I Returned Others Like It
I’ve bought a few different external drive systems over my lifetime, but none as quality on par as this chonky boy. It is thicc, you may notice the same thing, but I’ll tell you why it’s for good reason. I purchased the 0TB version of the OWC Express 1M2 SSD enclosure and I paired this up with a Samsung 990 Evo Plus. My needs for more hard drive space was quickly realized when the base Mac mini M4’s measly 256 GB of storage wasn’t gonna cut it. #basemodelgangThe premium quality straight out of the box was noticeable in my hands. Heavy. It feels well made and the aluminum reminds me of an expensive tool. It looks cool, I think. Matches the color of my Mac enough. All the fins, slices, across the top of the enclosure allow a massive amount of heat to be dispersed passively. No fans, no noise. And it works well! I have noticed it gets warm to the touch, but nowhere near concerning. It supports PCIe 4.0.It’s not the most portable SSD, I will say that is a downside, but it can be for the occasional need. I like that it’s thin enough to slide into the front pouch of a backpack. The better part of this setback, is that it allows me to edit videos in Final Cut Pro directly from the drive right as it sits on my desk. Quietly operating, without a sound. It’s fast, faster than anything I’ve used and almost double to internal Mac mini read/write speeds and averages above 3,000 for both.I think this product is for someone who wants to expand their computer with more storage, but doesn’t mainly travel with it. If your priority is portability, you may already know this isn’t for you. The things that make it not so great option to carry, are the exact reasons you want it when performance and sound are what you are looking for in your search for an external hard drive.

Premium build, Excellent speed enclosure.
I’ve been testing this OWC Express enclosure with my NVMe drives, and it works flawlessly. Setup was quick and simple — plug and play with my MacBook Pro 16 M4 Max, no issues at all. Performance is excellent: I’m getting stable speeds over 3,400+ MB/s with WD Black SN850X during very large file transfers (hundreds of GB).The aluminum build feels premium and does a great job with heat dissipation. After long transfers, the enclosure itself gets very warm to the touch but doesn’t drop the speed. I don’t know how healthy it is for the SSD inside. Only time will show.Perfect solution if you need reliable external NVMe storage for video editing, backups, or moving very large files. Definitely worth it if you want both speed and build quality.

The perfect drive enclosure for an Apple Silicon Mac and the WD Black SN850X !
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! 🙂 

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!

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.