OWC Express 1M2 80G 8TB USB4 NVMe SSD Alternatives: 6 Similar Picks Compared

How each alternative compares

Glyph Atom EX40 8TB USB4 External SSD

The Glyph Atom EX40 also offers 8TB capacity via USB4, but it prioritizes rugged durability over DIY flexibility. Unlike the OWC Express 1M2, which lets you swap in your own NVMe drives, the Glyph is a sealed unit. This design provides better physical protection for your data, which suits video professionals who work in harsh environments. You lose the ability to upgrade the internal SSD later, but you gain peace of mind regarding heat management and shock resistance. If you need a fixed, robust solution for large media files, this sealed design is a practical choice over the modular OWC option.

Glyph Atom EX80 8TB USB4 NVMe SSD

The Glyph Atom EX80 targets users who need top-tier sustained performance and enhanced security features. It shares the 8TB capacity and USB4 interface with the OWC Express 1M2, but it is positioned as a premium option. While the OWC drive focuses on broad compatibility and DIY customization, the Glyph emphasizes thermal management for demanding creative workflows. You will not be able to customize the internal drive yourself with this model. This sealed approach ensures consistent speeds during long transfers. If your priority is secure, high-speed storage for critical projects without the hassle of managing individual components, this premium sealed unit is the better fit.

Glyph Atom EX20 8TB Rugged External NVMe SSD

The Glyph Atom EX20 offers 8TB storage in a rugged, portable form factor, but it uses a different interface strategy than the OWC Express 1M2. It trades the high-bandwidth USB4 connection for a design that emphasizes passive cooling and physical toughness. This means you may see lower peak transfer speeds compared to the OWC drive, which supports PCIe Gen 5.0. However, the EX20 is built to withstand rough handling, making it ideal for field work. You give up the DIY upgradeability and maximum speed of the OWC, but you gain a highly durable, self-contained drive. If ruggedness is your main concern, this is a solid alternative.

Glyph Atom Pro 2 8TB Thunderbolt 3 SSD

The Glyph Atom Pro 2 uses Thunderbolt 3 instead of USB4, which affects your connectivity options. It provides 8TB of storage in a compact, sealed enclosure. Unlike the OWC Express 1M2, which supports a wide range of host devices including iPads and Chromebooks, this drive is optimized for Thunderbolt 3 ports. You cannot swap the internal SSD yourself. This model is best for users who already have a Thunderbolt 3 ecosystem and need reliable, high-capacity storage. It offers a fixed solution rather than the flexible, build-your-own approach of the OWC. If you are locked into Thunderbolt 3 hardware, this sealed unit is a straightforward choice.

Glyph Atom EV 8TB Portable NVMe SSD

The Glyph Atom EV is another Thunderbolt 3 option with 8TB capacity, designed for photographers and video editors. It shares the sealed, non-upgradeable design of the other Glyph models, contrasting with the DIY nature of the OWC Express 1M2. You get reliable performance in a small package, but you are limited to Thunderbolt 3 connectivity. The OWC drive offers broader compatibility with USB4 hosts and internal drive flexibility. If you prioritize capacity and proven reliability over future-proofing your drive choice, this sealed Thunderbolt 3 drive is a viable alternative. It is a fixed solution for those who do not need to change the internal SSD.

Sabrent Rocket 4 Plus 8TB Gen4 NVMe M.2 SSD

The Sabrent Rocket 4 Plus is an internal M.2 NVMe SSD, not an external enclosure. It offers 8TB capacity with Gen4 speeds, suitable for desktop builds or PS5 upgrades. Unlike the OWC Express 1M2, which is a portable, bus-powered external drive, this is a bare drive you install inside a computer. You lose portability and the convenience of USB4 connectivity. However, you gain direct PCIe connection for potentially lower latency in internal systems. If you are building a high-capacity internal storage solution rather than looking for a portable drive, this M.2 SSD is the appropriate choice. It fits users who need raw speed within a fixed system.

Quick picks

Our 7 picks

1 Best overall

OWC Express 1M2 80G 8TB USB4 NVMe SSD

Best for: Portable 8TB storage for creative pros

Storage Capacity

8TB

Interface

USB4 80Gb/s

Form Factor

Portable

Max Read Speed

Over 6000MB/s

Cooling

Solid Aluminum

Dimensions

5.24 × 2.83 × 0.94 inches

View on Amazon: OWC Express 1M2 80G 8TB USB4 NVMe SSD Affiliate link

This 8TB portable NVMe SSD connects via USB4 at 80Gb/s. It delivers peak read speeds over 6000MB/s. The drive supports DIY builds with PCIe Gen 3.0, 4.0, or 5.0 M.2 SSDs. Its patented cooling design keeps the drive cool during sustained workloads. It fits Macs, PCs, and iPad Pros. You get bus-powered convenience with included cable.

Pros

• USB4 80Gb/s interface for high bandwidth
• Peak read speeds over 6000MB/s
• Supports PCIe Gen 3.0/4.0/5.0 M.2 drives
• Patented heat-dissipating design for thermal management
• Bus-powered operation via USB4 cable

Cons

• Weight is 9.9 ounces
• PCIe Gen 5 SSDs require careful selection under 11 watts
• No internal battery for standalone use

Good fit if

• You need 8TB of portable storage
• You use Macs, PCs, or iPad Pros
• You want to build your own drive

Skip if

• You need a smaller form factor
• You require a built-in battery
• You only use USB 3.2 ports

Verdict: OWC Express 1M2 8TB USB4 NVMe SSD offers high speed and flexibility for creative professionals. It suits users who value DIY customization and broad device compatibility. You get reliable performance for pro-level projects.

2 Best 40gbps

Glyph Atom EX40 8TB USB4 External SSD

Best for: Rugged high-speed external storage for video

Storage Capacity

8TB

Interface

USB4 Type-C

Form Factor

Portable Drive

Max Read Speed

4,000 MB/s

Max Write Speed

4,000 MB/s

Transfer Speed

40Gbps

View on Amazon: Glyph Atom EX40 8TB USB4 External SSD Affiliate link

The Glyph Atom EX40 is an 8TB external NVMe drive with USB4 connectivity. It delivers up to 4,000 MB/s read and write speeds. The solid aluminum core and shell help manage heat for sustained performance. It meets MIL-Standard 810F for shock and dust resistance. This drive suits creators who need high throughput and durable storage for 8K video or RAW photo workflows.

Pros

• Up to 4,000 MB/s read and write speeds
• Solid aluminum core and outer shell for cooling
• MIL-Standard 810F shock, vibration, and dust resistance
• Compatible with USB 3.1, 3.0, and Thunderbolt 3/4/5

Cons

• Limited to 4,000 MB/s speeds compared to faster competitors
• No mention of included carrying case or travel pouch
• Only available in black color

Good fit if

• You need 8TB of high-speed external storage
• You work with 8K/12K video or RAW photos
• You require a rugged drive for field use

Skip if

• You need speeds exceeding 4,000 MB/s
• You prefer internal NVMe installation
• You need a drive smaller than 8TB

Verdict: The Glyph Atom EX40 8TB USB4 NVMe SSD offers reliable high-speed performance and rugged durability for creative professionals. It is a solid choice for users prioritizing heat management and physical protection for their large media files.

3 Also great

Glyph Atom EX80 8TB USB4 NVMe SSD

Best for: high-speed video editing and secure large file storage

Storage Capacity

8TB

Interface

USB4

Form Factor

Portable Drive

Max Read Speed

Up to 7,000 MB/s

View on Amazon: Glyph Atom EX80 8TB USB4 NVMe SSD Affiliate link

The Glyph Atom EX80 is an 8TB external NVMe drive with a USB4 80Gbps interface. It delivers read speeds up to 7,000 MB/s. SteadyIO technology maintains consistent performance during heavy workloads. A solid aluminum shell helps manage heat for sustained speeds. It also includes integrated location tracking for security. This drive suits professionals needing fast, reliable storage for large media files.

Pros

• USB4 80Gbps interface for high throughput
• Read speeds up to 7,000 MB/s
• SteadyIO technology for consistent write speeds
• Solid aluminum core for improved thermal management
• Integrated location tracking for device security

Cons

• No mention of included cable or power adapter
• No mention of internal drive warranty length
• No mention of included backup software

Good fit if

• You edit 12K+ RAW video or handle large AI datasets
• You need location tracking for expensive hardware
• You require sustained speeds for multi-stream workflows

Skip if

• You need a drive under 8TB capacity
• You require a smaller form factor without magnetic mounting
• You are on a tight budget for high-capacity storage

Verdict: The Glyph Atom EX80 8TB USB4 NVMe SSD offers top-tier speeds and thermal management for demanding creators. It is ideal for professionals who prioritize data security and sustained performance over cost.

4 Best budget

Glyph Atom EX20 8TB Rugged External NVMe SSD

Best for: Rugged, portable high-speed external storage

Storage Capacity

8TB

Interface

USB 3.2 Gen 2x2

Form Factor

External SSD

Max Read Speed

Up to 2,100 MB/s

Max Write Speed

Up to 2,100 MB/s

Cooling

Solid aluminum core and outer shell

View on Amazon: Glyph Atom EX20 8TB Rugged External NVMe SSD Affiliate link

The Glyph Atom EX20 is an 8TB external NVMe SSD designed for high-speed data transfer. It delivers up to 2,100 MB/s read and write speeds via a USB 3.2 Gen 2x2 Type-C interface. The drive features a solid aluminum core for passive cooling and meets MIL-Standard 810F for durability. This model suits professionals needing reliable, rugged storage for large media files without the bulk of larger enclosures.

Pros

• Up to 2,100 MB/s read and write speeds
• Solid aluminum core for efficient passive heat dissipation
• MIL-Standard 810F shock, vibration, and dust resistance
• USB 3.2 Gen 2x2 Type-C interface with backward compatibility

Cons

• Lower 20Gb/s interface speed compared to USB4 options on this list
• No active fan cooling despite high sustained speeds
• Only 3-year hardware warranty compared to longer terms on competitors

Good fit if

• You need rugged, portable storage for field work
• You require high-speed transfers for 4K video editing
• You prefer passive cooling for silent operation

Skip if

• You need the maximum possible bandwidth from USB4
• You require active fan cooling for extreme loads
• You want a longer hardware warranty period

Verdict: The Glyph Atom EX20 8TB NVMe SSD offers robust durability and solid speeds for mobile professionals. It fits users who prioritize ruggedness and passive cooling over the highest possible interface bandwidth.

5 Also great

Glyph Atom Pro 2 8TB Thunderbolt 3 SSD

Best for: Thunderbolt 3 users needing 8TB capacity

Storage Capacity

8TB

Interface

Thunderbolt 3

Form Factor

2.5 inch

Max Read Speed

2800 MB/s

Max Write Speed

2600 MB/s

Dimensions

2.4 × 4.1 × 0.6 inches

View on Amazon: Glyph Atom Pro 2 8TB Thunderbolt 3 SSD Affiliate link

The Glyph Atom Pro 2 is an external NVMe SSD with 8TB of storage. It connects via Thunderbolt 3, offering read speeds up to 2800 MB/s and write speeds up to 2600 MB/s. The drive uses a compact 2.5-inch form factor. It comes pre-installed with Windows 10. This drive suits users needing high capacity and fast transfer rates for professional workflows.

Pros

• 8TB storage capacity
• Thunderbolt 3 interface
• 2800 MB/s read speed
• 2600 MB/s write speed
• Pre-installed Windows 10

Cons

• Thunderbolt 3 is slower than Thunderbolt 4 or USB4
• Heavier at 11.7 ounces
• Larger 2.5-inch form factor

Good fit if

• You need 8TB of portable storage
• You use Thunderbolt 3 ports
• You want a pre-installed Windows system

Skip if

• You require USB4 or Thunderbolt 4 speeds
• You prefer a lighter portable drive
• You want a smaller 1.8-inch drive

Verdict: The Glyph Atom Pro 2 8TB Thunderbolt 3 SSD offers reliable speed and large capacity for Thunderbolt 3 users. It is a solid choice for professionals who need to move large files quickly without setting up an OS.

6 Best usb-c

Glyph Atom EV 8TB Portable NVMe SSD

Best for: Thunderbolt 3 users needing 8TB

Storage Capacity

8TB

Interface

USB-C

Form Factor

Portable

Dimensions

5.6 × 2.9 × 1.8 inches

View on Amazon: Glyph Atom EV 8TB Portable NVMe SSD Affiliate link

The Glyph Atom EV is an 8TB portable NVMe SSD with Thunderbolt 3 support. It delivers data transfer rates up to 480 Mbps. The compact black unit measures 5.6 by 2.9 by 1.8 inches. It works with Windows 10 out of the box. This drive suits users needing high capacity in a small, reliable form factor.

Pros

• 8TB storage capacity for large files
• Thunderbolt 3 interface for fast transfers
• Compact portable design fits easily in bags
• Plug-and-play compatibility with Windows 10

Cons

• Transfer speeds capped at 480 Mbps
• Thunderbolt 3 is older than USB4
• No mention of included software or encryption

Good fit if

• You need 8TB of portable storage
• You use Thunderbolt 3 ports
• You prefer a compact external drive

Skip if

• You require USB4 or Thunderbolt 4
• You need speeds over 480 Mbps
• You use a Mac without Thunderbolt

Verdict: The Glyph Atom EV 8TB Thunderbolt 3 offers reliable high-capacity storage in a small package. It fits photographers or video editors who already use Thunderbolt 3 and prioritize capacity over raw speed.

7 Best premium

Sabrent Rocket 4 Plus 8TB Gen4 NVMe M.2 SSD

Best for: high-capacity internal storage builds

Storage Capacity

8TB

Interface

PCIe Gen4 x4

Form Factor

M.2

Max Read Speed

7100 MB/s

Max Write Speed

6600 MB/s

Dimensions

3.15 × 0.86 × 0.11 inches

View on Amazon: Sabrent Rocket 4 Plus 8TB Gen4 NVMe M.2 SSD Affiliate link

This is an internal M.2 NVMe SSD with 8TB of storage. It uses a PCIe Gen4 x4 interface to deliver sequential read speeds up to 7100 MB/s and write speeds up to 6600 MB/s. The drive supports NVMe 1.3 and is compatible with PS5. It includes power management features like APST and ASPM. You get free cloning software and a utility for sector size formatting. It suits users needing high-capacity internal storage.

Pros

• 8TB storage capacity
• PCIe Gen4 x4 interface
• 7100 MB/s max read speed
• 6600 MB/s max write speed
• PS5 compatible

Cons

• Internal drive only, no external enclosure
• No included heatsink
• Requires separate mounting solution

Good fit if

• You need 8TB of internal storage
• You want PCIe Gen4 speeds
• You are building a PS5

Skip if

• You need an external portable drive
• You only have PCIe Gen3 slots
• You want a pre-cooled drive

Verdict: Sabrent Rocket 4 Plus 8TB M.2 NVMe SSD offers fast internal storage for high-capacity needs. It fits users who want Gen4 speeds for a PS5 or desktop build.

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