OWC Express 1M2 USB4 (80Gb/s) 2TB Bus-Powered Portable NVMe

2 TB
CHF314.–/1TB
8Ratings
BrandMore from OWC
Test reports1 test
Delivered between Fri, 29.5. and Mon, 1.6.
Only 1 piece in stock at supplier
free shipping

Memory Size3

USB ports2

Product details

The Express 1M2 USB4 (80Gb/s) 2TB Bus-Powered Portable NVMe is a state-of-the-art external SSD known for its flexibility and future-proofing. It caters to a variety of user groups, from DIY enthusiasts looking to install their own NVMe M.2 SSDs to plug-and-play users seeking an immediately ready high-performance solution. With a storage capacity of 2 terabytes, this device offers ample space for extensive data and is ideal for use in mixed operating system environments. The SSD features a passive cooling design that ensures optimal heat dissipation and maintains performance under various conditions. Its ease of use and compatibility with different platforms make the Express 1M2 a reliable choice for anyone who values speed and efficiency.

  • High read speeds of up to 6000 MB/s for fast data transfers
  • Compatible with macOS and Windows, including easy reformatting
  • Passive cooling design for optimal performance and reliability
  • Plug-and-play functionality for immediate use without additional software
  • Expandable solution for growing capacity needs.

Key specifications

USB ports
Thunderbolt, Thunderbolt 4, USB-C
Read transfer speed
6000 MB/s
Write transfer speed
2974 MB/s
Form factor
M.2 2280

General information

Item number
61851946
Manufacturer
OWC
Category
External SSDs
Manufacturer No.
OWCUS4V2EXP1MT02
Release date
19.9.2025

Colour

Colour
Silver
Exact colour description
Silver

Data storage properties

Storage capacity
2 TB
USB ports
Thunderbolt, Thunderbolt 4, USB-C
Read transfer speed
6000 MB/s
Write transfer speed
2974 MB/s
Form factor
M.2 2280

Origin

Country of origin
Taiwan

Voluntary climate contribution

CO₂ emissions
66.93 kg
Climate contribution
CHF 1.59

Scope of delivery

Scope of delivery
Screwdriver, USB-C cable

Product dimensions

Length
13.20 cm
Width
7 cm
Height
2.30 cm
Weight
253 g

Package dimensions

Length
16.40 cm
Width
13 cm
Height
4.80 cm
Weight
404 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «External SSDs» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 11.Intenso
    0.9 %
  • 12.Crucial
    1.4 %
  • 13.OWC
    1.5 %
  • 14.Adata
    1.7 %
  • 15.Corsair
    2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Intenso
    2 days
  • 1.Kingston
    2 days
  • 1.OWC
    2 days
  • 6.Samsung
    3 days
  • 6.Verbatim
    3 days

Return rate

How often is a product of this brand in the «External SSDs» category returned?

Source: Digitec Galaxus
  • 13.Kioxia
    2.5 %
  • 13.LaCie
    2.5 %
  • 15.OWC
    4.2 %
  • 16.Corsair
    4.7 %
  • 17.SanDisk Professional
    5.1 %
Source: Digitec Galaxus

Translation: machine translated
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Macwelt spezialUSB4- und Thunderbolt-5-Laufwerke im TestReleaseJanuary 2026

Data transfer rates of over 6000 MB/s for a mobile drive - such values have hardly ever been achieved before. The fact that the Express 1M2 80G remains "cool" in the truest sense of the word is anything but a matter of course in this speed class. In terms of price, however, it plays in the same league as Thunderbolt 5 drives and is even more expensive at market launch than the comparable Envoy Ultra...