---
product_id: 630145789
title: "Express 1M2 Portable SSD NVMe Thunderbolt Enclousure 40Gbps USB-C USB4 Ultra Fast up to 3836MB/s real-world performance External SSD Drive with Aluminum Heat Sink - Works with PC & Mac (4TB)"
brand: "owc"
price: "AR$5247584"
currency: ARS
in_stock: true
reviews_count: 13
category: "Owc"
url: https://www.desertcart.com.ar/products/630145789-express-1m2-portable-ssd-nvme-thunderbolt-enclousure-40gbps-usb-c
store_origin: AR
region: Argentina
---

# Up to 3836MB/s blazing speed Supports NVMe M.2 SSDs up to 16TB+ Patent-pending heat sink for silent cooling Express 1M2 Portable SSD NVMe Thunderbolt Enclousure 40Gbps USB-C USB4 Ultra Fast up to 3836MB/s real-world performance External SSD Drive with Aluminum Heat Sink - Works with PC & Mac (4TB)

**Brand:** owc
**Price:** AR$5247584
**Availability:** ✅ In Stock

## Summary

> ⚡ Own the speed. Keep your cool. Store like a pro.

## Quick Answers

- **What is this?** Express 1M2 Portable SSD NVMe Thunderbolt Enclousure 40Gbps USB-C USB4 Ultra Fast up to 3836MB/s real-world performance External SSD Drive with Aluminum Heat Sink - Works with PC & Mac (4TB) by owc
- **How much does it cost?** AR$5247584 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/630145789-express-1m2-portable-ssd-nvme-thunderbolt-enclousure-40gbps-usb-c)

## Best For

- owc enthusiasts

## Why This Product

- Trusted owc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Silent, Rugged Cooling:** Innovative fanless aluminum heat sink design keeps your SSD cool and quiet—no noise, no overheating, no compromises.
- • **Blazing Thunderbolt 4 Speeds:** Experience ultra-fast 40Gbps transfers that crush USB 3.2 bottlenecks and keep your workflow lightning quick.
- • **Future-Proof DIY Flexibility:** Compatible with all NVMe M.2 SSD sizes (2280, 2242, 2230) and ready for next-gen 16TB+ drives—build your perfect storage powerhouse.
- • **Portable Powerhouse with Warranty:** Bus-powered, palm-sized, and backed by a 2-year enclosure warranty—ultimate reliability wherever your projects take you.
- • **Seamless Cross-Platform Compatibility:** Plug & play with Mac, PC, USB4, Thunderbolt, and USB-C devices—your go-to external SSD enclosure for any setup.

## Overview

The OWC Express 1M2 is a premium portable NVMe SSD enclosure delivering up to 3836MB/s real-world speeds via Thunderbolt 4 and USB4. Its patent-pending aluminum heat sink ensures silent, efficient cooling without fans, protecting your SSD during intense workloads. Supporting all NVMe M.2 SSD sizes up to 8TB and future 16TB+ drives, it offers unmatched DIY flexibility. Compatible with Mac and PC, this bus-powered, palm-sized enclosure includes a 40Gbps USB-C cable and screwdriver, backed by a 2-year warranty—perfect for professionals demanding speed, reliability, and portability.

## Description

Express 1M2 - 4TB Ultra-fast, compatible, and reliable portable USB4 NVMe SSD. Build your own or choose ready-to-run solutions.

Review: Turn an NVME SSD into a high-performing external drive - UPDATE: note for dock users - If you already have an NVME SSD to hand, this is a cheap(ish) way to turn it into a high performing Thunderbolt external drive. With a WD Black SN770 2TB SSD (pulled out of my desktop PC) inside and connected to my M4 MacBook Air, I can get over 3GBps read and write on this drive - probably difficult to get faster reads and writes than that with an external drive I'd reckon. Mounts fine every time and seems stable - doesn't disconnect when laptop goes to sleep. It was pretty easy to install the drive and it's even supplied with rubber feet for you to install over the screws once you've got the drive installed. The enclosure looks good and keeps the drive relatively cool - it gets warm, but never hot to the touch (even after hours of use). UPDATE: using with a Thunderbolt dock. I tried using this enclosure with several Wavlink Thunderbolt docks, and with each of them the drive only performed in USB 3.2 mode, achieving reads/writes of around 1GBps - much slower than if connected to the Mac directly. After some research, it transpires people using this enclosure with other docks (CalDigit TS4, mainly) were having the same issues. Talking to OWC's tech support over email (they responded quickly), I asked if their docks would enable the enclosure/drive to perform at USB 4 speeds. They said yes, so I bought the OWC 11-port Thunderbolt 4 dock and it worked. You won't get quite full performance when using a dock, but I am getting over 2GBps reads and writes (almost 3GBps reads) via the OWC dock and am happy with that. So if you are intending to use this drive with a dock, or wondering why it doesn't perform optimally with the one you're using, my recommendation is to (unfortunately) shell out for an OWC one.
Review: Is there any better enclosure at these speeds? - Not sure you can do better than this enclosure at this price. It’s fanless, so it’s entirely silent during operation and you don’t have to worry about the fan failing, which is huge double bonus. This should literally last as long as the components inside it do, with no other point of failure. Built with maximum efficiency so it stays at safe temps even during prolonged use. It’s rock solid, build like a brick, feels premium and high quality and has never gotten too hot to touch, only very warm when in use. It is a heat sink so it gets warm even when idle but that’s expected. It fell off my shelf (about 8 inch drop onto hardwood floor) with ssd installed and no affect on performance, not even a scuff! Every other enclosure I researched either had a fan (noise, point of failure) or had sketchy prolonged temps. This is the only one I found that does everything you could want an enclosure to do. It’s rare to find a product that has no discernible con or trade off, but this might just be it! Paired with a 990 Pro on MBP for gaming and works like a charm. It’s half the speed of the 990 Pro so will look at getting a faster enclosure in the future to unlock max SSD speeds. Until then this does everything it needs to.

## Features

- Ultra-reliable & Innovative: Patent pending heat-dissipating design offers rugged protection of your SSD while silently keeping drive cool for consistent top speed - Dont Risk your Data with Cheap Enclousres
- Flexible DIY Option: use your choice of NVMe M.2 2280, 2242, or 2230 SSD - Works with All Manufacturers SSDs up to 8.0TB capacity - as well as being ready for tomorrow’s 16TB and future capacities without limit.
- Ultra-fast: over 2x faster than Thunderbolt portable enclosures with up to 3836MB/s real-world performance
- Ultra-compatible: use with USB4, Thunderbolt, and USB-C computers and devices. Works with
- Portable: Bus-powered and palm-sized for convenient use anywhere - No power adapter required
- Complete Kit: includes 40Gb/s USB-C cable and screwdriver for enclosure
- Worry-free: 2 Year (enclosure) or 3 Year (Installed SSD Solution) OWC Limited Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CPRD2JWZ |
| Best Sellers Rank | 5,529 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 19 in External Solid State Drives |
| Box Contents | 40Gb/s USB-C Cable, Assembly Manual, OWC Express 1M2, Screwdriver (Casing Only), User Manual |
| Brand | OWC |
| Brand Name | OWC |
| Cache Memory Installed Size | 4 TB |
| Color | Silver |
| Compatible Devices | Ordenador de escritorio, Portátil, Tablet |
| Connectivity technology | Thunderbolt |
| Country of Origin | Taiwan |
| Customer Package Type | Portable, Robust Packaging |
| Customer Reviews | 4.6 out of 5 stars 892 Reviews |
| Data Transfer Rate | 3151 Megabytes Per Second |
| Digital Storage Capacity | 4 TB |
| Digital storage capacity | 4 TB |
| Enclosure Material | Metal |
| Form Factor | portable |
| Global Trade Identification Number | 00810149208850 |
| Hard Disk Description | Solid State Drive |
| Hard Disk Form Factor | 2.5 Inches |
| Hard Disk Interface | Thunderbolt |
| Hard disk form factor | 2.5 Inches |
| Hard disk interface | Thunderbolt |
| Hard-Drive Size | 4 TB |
| Hardware Connectivity | Solid State Drive, Thunderbolt, USB Type C |
| Hardware Platform | Mac, PC |
| Installation Type | External Hard Drive |
| Item Dimensions L x W x Thickness | 5.1L x 2.3W x 6.9Th centimetres |
| Manufacturer | OWC |
| Manufacturer Part Number | OWCUS4EXP1MT04 |
| Media Speed | 3151 |
| Model Name | Express 1M2 |
| Model Number | OWCUS4EXP1MT01 |
| Network Connectivity Technology | Thunderbolt |
| Number of Items | 1 |
| Product Features | Portable |
| Product Warranty | 2 year manufacturer |
| Read Speed | 3151 Megabytes Per Second |
| Special feature | Portable |
| Specific Uses For Product | Business, Gaming, Professional |
| UPC | 810149208850 |
| Unit Count | 1 count |

## Product Details

- **Brand:** OWC
- **Colour:** Silver
- **Compatible devices:** Ordenador de escritorio, Portátil, Tablet
- **Connectivity technology:** Thunderbolt
- **Digital storage capacity:** 4 TB
- **Hard disk description:** Solid State Drive
- **Hard disk form factor:** 2.5 Inches
- **Hard disk interface:** Thunderbolt
- **Installation type:** External Hard Drive
- **Special feature:** Portable

## Images

![Express 1M2 Portable SSD NVMe Thunderbolt Enclousure 40Gbps USB-C USB4 Ultra Fast up to 3836MB/s real-world performance External SSD Drive with Aluminum Heat Sink - Works with PC & Mac (4TB) - Image 1](https://m.media-amazon.com/images/I/71VCC4AJPYL.jpg)

## Available Options

This product comes in different **Hard Disk Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Turn an NVME SSD into a high-performing external drive - UPDATE: note for dock users
*by J***N on 12 April 2026*

If you already have an NVME SSD to hand, this is a cheap(ish) way to turn it into a high performing Thunderbolt external drive. With a WD Black SN770 2TB SSD (pulled out of my desktop PC) inside and connected to my M4 MacBook Air, I can get over 3GBps read and write on this drive - probably difficult to get faster reads and writes than that with an external drive I'd reckon. Mounts fine every time and seems stable - doesn't disconnect when laptop goes to sleep. It was pretty easy to install the drive and it's even supplied with rubber feet for you to install over the screws once you've got the drive installed. The enclosure looks good and keeps the drive relatively cool - it gets warm, but never hot to the touch (even after hours of use). UPDATE: using with a Thunderbolt dock. I tried using this enclosure with several Wavlink Thunderbolt docks, and with each of them the drive only performed in USB 3.2 mode, achieving reads/writes of around 1GBps - much slower than if connected to the Mac directly. After some research, it transpires people using this enclosure with other docks (CalDigit TS4, mainly) were having the same issues. Talking to OWC's tech support over email (they responded quickly), I asked if their docks would enable the enclosure/drive to perform at USB 4 speeds. They said yes, so I bought the OWC 11-port Thunderbolt 4 dock and it worked. You won't get quite full performance when using a dock, but I am getting over 2GBps reads and writes (almost 3GBps reads) via the OWC dock and am happy with that. So if you are intending to use this drive with a dock, or wondering why it doesn't perform optimally with the one you're using, my recommendation is to (unfortunately) shell out for an OWC one.

### ⭐⭐⭐⭐⭐ Is there any better enclosure at these speeds?
*by M***L on 30 December 2025*

Not sure you can do better than this enclosure at this price. It’s fanless, so it’s entirely silent during operation and you don’t have to worry about the fan failing, which is huge double bonus. This should literally last as long as the components inside it do, with no other point of failure. Built with maximum efficiency so it stays at safe temps even during prolonged use. It’s rock solid, build like a brick, feels premium and high quality and has never gotten too hot to touch, only very warm when in use. It is a heat sink so it gets warm even when idle but that’s expected. It fell off my shelf (about 8 inch drop onto hardwood floor) with ssd installed and no affect on performance, not even a scuff! Every other enclosure I researched either had a fan (noise, point of failure) or had sketchy prolonged temps. This is the only one I found that does everything you could want an enclosure to do. It’s rare to find a product that has no discernible con or trade off, but this might just be it! Paired with a 990 Pro on MBP for gaming and works like a charm. It’s half the speed of the 990 Pro so will look at getting a faster enclosure in the future to unlock max SSD speeds. Until then this does everything it needs to.

### ⭐⭐⭐⭐⭐ Great external drive for M3 Macbook Pro when combined with Crucial P510 SSD
*by N***K on 29 March 2026*

Easy install with 2TB Crucial P510 2280 M.2 SSD. M3 Macbook Pro Thunderbird port - Sequoia Black Magic Disk Speed Test: Write 3127 MB/s Read 3074 MB/s. Good speed results with SupeDuper! backup of Mac HD and SD card imaging. Heat sink runs warm to the touch - doing its's job, that's what it's for! Easy to setup APFS volumes in macOS Disk Utility with min & max size limits. Eay to add as second backup drive for TimeMachine - will see how that goes ...

## Frequently Bought Together

- OWC 4TB Express 1M2 Portable NVMe Thunderbolt (USB-C) SSD USB4 Ultra Fast External SSD Drive with Aluminum Heat Sink Enclosure
- OWC 0.3M Thunderbolt 5 (USB-C) Cable, up to 80Gb/s of bi-Directional Data Speed, up to 120Gb/s for Higher Display Bandwidth, 240W
- OWC Atlas USB4 CFexpress 4.0 Type B Card Reader, 40Gb/s USB4 USB-C Port, Bus Powered, Includes Type A>B Adapter for Fast ingest of Type A Cards, Up to 5000MB/s Real-World Speed, USB-C Cable

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-10-04*