OWC Envoy Pro SX

The Super-Fast, Xtremely Rugged Portable SSD

OWC Envoy Pro SX

Up to




Mac & PC

Thunderbolt (USB-C)



Portable SSD with a Small Footprint

Up to

3 Year

OWC Limited Warranty

0TB DIY Enclosure

Add your own NVMe M.2 SSD








OWC Envoy Pro SX with spilled coffee

One Powerful and Rugged Little Beast

The mild-mannered exterior of the Envoy Pro SX hides its true nature. It’s Super-fast. Super-versatile. Super-portable. And rugged enough to endure even the most perilous work and play settings. When put to the test, this little beast of an SSD handles data storage and backup challenges like a true superhero.

Lightning Fast

The Envoy Pro SX with TRIM support technology delivers Xtreme real-world speeds up to 2847MB/s

Super Versatile

Perfect for audio, video, photography, graphics, gaming, and general data storage/backup uses

Xtremely Portable

Bus-powered and smaller than most compact smartphones

Xtremely Rugged

Crushproof, dustproof and waterproof IP67 rated2

Silently Cool

Fanless, heat dissipating aluminum housing for distraction free operation


Compatible with macOS and Windows built-in encryption


LED for at a glance confirmation of power and activity status


Included Thunderbolt cable plugs into any Thunderbolt (USB-C) equipped Mac, PC, or iPad


Up to 3 Year OWC Limited Warranty

OWC Envoy Pro SX front
OWC Envoy Pro SX back
Two people at video workstation

Super Versatile

It’s versatile enough to be used as a bus-powered drive for daily storage and backup tasks, or to easily handle the speed demands of production-level audio, design, and photography workflows. And it serves up real-world performance speeds up to 2847MB/s1 with modern Thunderbolt (USB-C) equipped Macs, PCs, and iPads.

OWC Envoy Pro SX is crushproof, IP67 dustproof and waterproof, and travel sized

An Everyday Superhero

This portable storage powerhouse features a removable Thunderbolt (USB-C) cable, and is IP67 rated and test certified to handle the nastiest environments. From handling obstacles in the field to deadlines at home, the Envoy Pro SX lets you unleash your productivity power without needing a cape or mask.

OWC Envoy Pro SX on desktop

Saves the Day in Every Way

Whatever your data journey, the Envoy Pro SX is ready to deliver a crushing blow to time robbing work and play challenges in the blink-of-an eye. Use it for:

  • Photo, video, and document storage
  • Backups via Time Machine or File History
  • Secondary/portable OS boot drive
  • On-set project drive for editing dailies
  • Multi-angled camera editing
  • Exploring your photo’s potential in Affinity Photo and Adobe Photoshop
  • Utilizing large sample libraries within audio projects 
  • A portable Steam games library
OWC Envoy Pro SX with light on

Form Meets Function

The grooved fins on the Envoy Pro SX’s matte black aluminum chassis transform it into a highly effective heat sink. Even after a diabolically long file transfer, the stealthy and silent Envoy Pro SX stays reliably fast.

OWC Envoy Pro SX + Encryption

Encryption Compatible

The Envoy Pro SX is fully compatible with macOS and Windows built-in encryption, so you can add peace of mind password security to your data.

OWC Thunderbolt 3 Cable

OWC Thunderbolt Cable Included

OWC Envoy Pro SX solutions come with a certified 0.3 meter OWC Thunderbolt Cable. But if your workflow demands a different length to make the connection, OWC Thunderbolt (USB-C) Cables are the perfect choice.

OWC, Trusted by Pros & Enthusiasts the World Over

OWC, Trusted by Pros & Enthusiasts the World Over

We build our hardware to the highest standards of reliability and performance. Because 100% reliability is always the goal, we rigorously quality test and back our hardware with a 3 Year OWC Limited Warranty and award-winning customer support.

Learn More
  1. Up to 2847MB/s sequential read/write (max) performance was observed based on testing a 1.0TB OWC Aura Ultra III equipped Envoy Pro SX connected to a Windows 10 PC equipped with a Gigabyte Technology motherboard with an Intel Core i5-6400 2.7GHz processor and 16GB RAM running CrystalDiskMark 6.0.2 (4K-Full resolution, 4GB file size, 16bit RGB codec, single file test). Performance will vary depending on drive and application used.
  2. Dropped over 25 times at every angle from a height of four feet by a third-party testing and certification service. Water resistant for up to 30 minutes at < 1 meter.