• Ultra-fast: up to 3151MB/s real-world performance1
• Ultra-compatible: use with USB4, Thunderbolt, and USB-C computers and devices
• Ultra-reliable: aircraft grade aluminum offers rugged protection of your SSD while silently keeping drive cool for consistent top speed
• Powerful choices: Build your own drive or select OWC Aura SSD powered solution
• Flexible DIY: use your choice of NVMe M.2 2230, 2242, or 2280 SSD
• Portable: bus-powered and palm-sized for convenient use anywhere
• Complete: includes USB-C (40Gb/s) cable and screwdriver for assembly
• Worry-free: 3 Year (solution) or 2 Year (enclosure) OWC Limited Warranty

The Ultimate Creation Tool

Give yourself the ultimate in creative power by building the portable drive of your dreams or choosing an advanced technology OWC Aura SSD powered OWC Express 1M2. Whether repurposing a drive, starting with a new drive, or wanting the convenience of a ready-to-run solution, you will infuse your workflow with the highest performance and reliability with an Express 1M2.

As Fast as Your Computer or Device

The Express 1M2 is the fastest single portable SSD we offer and was purposefully built to maximize the performance capabilities of today and tomorrow's USB4 equipped Macs and PCs. Experience up to an astonishing 3151MB/s speed when you use the Express 1M2 with most Macs and PCs you own from 2020 and newer. You can also enjoy highly effective performance (yep…you can edit 4K video no problem) and flexible compatibility with millions of yesterday’s Thunderbolt and USB-C machines and devices:

Don’t Get Fooled

Because we’re widely considered the Thunderbolt experts and work very closely with Intel, we know all the little details that others overlook. While specific OWC solutions are certified for full speed on Thunderbolt, we (and everyone else) are limited to half that speed with DIY enclosures. USB4 unleashes the Express 1M2 performance capabilities so you can build the drive of your dreams. Unlike budget brand pretenders that do not follow Intel specifications – and will leave you feeling fooled and disappointed in far lower speeds – the Express 1M2’s USB4 connectivity assures you of the maximum speed and reliability you count on and expect from every OWC solution.

Use Today’s and Tomorrow’s Drives

Designed to support any NVMe M.2 2230, 2242, or 2280 SSD, the Express 1M2 gives you the freedom of flexibility to use any drive today - including OWC Aura SSDs up to 8.0TB capacity - as well as being ready for tomorrow’s 16TB and future capacities without limit.

Built to Handle Demanding Needs

You’ll never have to worry about thermal throttling because form meets function with the Express 1M2. Its solid aluminum heat sink design ensures proper heat dissipation so you can depend on consistent maximum performance. Unlike a snap together toolless enclosure, Express 1M2 screws together to securely protect your drive inside its rugged enclosure. And when you need to share the Express 1M2, it can work cross-platform with Macs and PCs using OWC MacDrive software (available separately) for peace between the platforms.

Detailed Specs

Number of Bays

• 1

Drive Bays

• 1 bay supporting: M.2 drives
• Supports M.2 2230, M.2 2242, M.2 2280 "M Key" drives

Mechanisms Supported

• NVMe M.2 SSD

Plug and Play

• Yes

Drive Interface

• M.2

Device Ports

• (1) Host Port - USB4 (USB-C) up to 40Gb/s (5000MB/s)

Data Transfer Rate (Maximum)

• USB4 : Up to 40 Gb/s (or 5000 MB/s)

Chipset

• USB: ASM2464PD

Contact Start Stops

• Varies depending on drive mechanism installed

Host Port Requirements

• USB4 or Thunderbolt (USB-C)1 port

Mac OS Compatibility

• macOS 10.13 High Sierra
• macOS 10.14 Mojave
• macOS 10.15 Catalina
• macOS 11.x Big Sur
• macOS 12.x Monterey
• macOS 13.x Ventura
• macOS 14.x Sonoma

PC OS Compatibility

• Windows 10 32-bit Edition
• Windows 10 64-bit Edition
• Windows Server 2016
• Windows 11

Linux OS Compatibility

• Yes

Mobile OS Compatibility

• iPadOS 13
• iPadOS 14
• iPadOS 15
• iPadOS 16
• iPadOS 17
• iOS 17
• Android 13.x

Other OS Compatibility

• Chrome OS
• ChromeOS version 102 and later

Driver Required

• No

External Power Adapter

• No

Power Supply

• Bus-powered

Security Slot

• No

Power/Activity LED

• Yes

Housing Color

• Silver

Housing Material

• Aluminum

Dimensions

• Height: 2.3 cm (0.9 in)
• Length: 13.2 cm (5.2 in)
• Width: 7.0 cm (2.8 in)

Weight

• 253.0 g (0.56 lbs)

Certifications

• BSMI
• CE
• FCC
• RCM
• VCCI

Reach Certification

• Yes

Country of Origin

• Taiwan

TAA Compliance

• Yes

Ambient Temperature

• Operating: 41°F to 95°F (5°C to 35°C)
• Non-Operating: -4°F to 140°F (-20°C to 60°C)

Humidity

• Operating: 8% to 90% non-condensing
• Non-Operating: 5% to 95% non-condensing

1. Hosts with Thunderbolt 3 ports will experience performance up to USB 10Gb/s.
2. NVMe SSDs with heat sinks will not fit and are not supported.
3. OWC storage solutions that are experiencing slow read/write speeds should consider checking and changing the Windows disk removal policy. Changing from ‘Quick removal’ to ‘Better performance’ can increase disk performance. OWC offers the application OWC Disk Performance to help change the Disk Removal Policy. Changing from Quick removal to Better performance can also be changed manually. Please review the support article Storage Solutions: OWC Disk Performance for more detail.

Compatibility