OWC Envoy Pro Elektron review

This pocket-sized SSD feels incredibly tough and enables speedy image downloads

OWC Envoy Pro Elektron
(Image: © Angela Nicholson / Digital Camera World)

Digital Camera World Verdict

Provided you don’t need more than 2TB storage on a single drive, the OWC Envoy Pro Elektron makes an excellent choice of portable SSD. It’s incredibly small and durable, comes with a sensible length USB-C cable (with an USB-A adapter attached) and it doesn’t leave you hanging around for ages while your files transfer.


  • +

    Very small

  • +

    Robust construction

  • +

    Affordable - especially the smaller capacities


  • -

    Maximum capacity 2TB

  • -

    Heats up quickly during use

  • -

    Read speed is a little slow

Why you can trust Digital Camera World Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out how we test.

OWC, Other World Computing, was founded in 1988 and is a zero-emissions technology company that produces an extensive range of computer upgrade kits, memory, computer docking stations and storage drives. The Envoy Pro Elektron is the company’s smallest portable SSD but it’s also very tough and its NVMe M.2 2242 technology means it is capable of transfer speeds of up to 1011 MB/s.


(Image credit: Angela Nicholson / Digital Camera World)

Max data transfer speed: 1011 MB/s

Available capacities: 240GB, 480GB, 1TB, 2TB

Key features

(Image credit: Angela Nicholson / Digital Camera World)

OWC produces the Envoy Pro Elektron in four capacities, 240GB, 480GB, 1TB, 2TB, majoring on the smaller sizes rather than the larger ones. This means that the SSD is available at very attractive prices, but the 2TB drive has some stiff competition from the likes of the SanDisk Professional G-Drive SSD

The drive has a USB-C (USB 3.2 Gen 2) port that enables data transfer rates of up to 10Gb/s (1250 MB/s), but OWC claims a maximum data transfer rate of 1011 MB/s. 

Helpfully, OWC supplies a USB-C to USB-C cable with a tethered USB-C to USB-A adapter. This means that the drive can be used with older computers as well as the latest models and you only have one cable to keep to carry.

Build and handling

(Image credit: Angela Nicholson / Digital Camera World)

The OWC Envoy Pro Elektron measures just 12 x 76 x 52mm and weighs 85g, which means that you can slip it comfortably into a jeans pocket or in that last little space in your camera bag. It’s also built like a small tank, is crushproof, and looks like a solid block of metal. Its aircraft-grade aluminum feels very reassuring.

According to OWC, the Envoy Pro Elektron has a dust and water resistance rating of IP67. That means that it is dust-tight, completely protected from dust ingress, and it can be survive being submerged to a depth of 1m for up to 30 minutes. Those impressive stats mean it should survive a splash of coffee, or being dropped in a puddle.

Although the drive is very small, OWC supplies it with a USB-C cable that’s not far off 70cm long. That’s great news for anyone reaching around the back of their computer to find the USB port, or when you’re working with your laptop on your knee. It means that the Envoy Pro Elektron is unlikely to be left dangling awkwardly and at risk of accidental disconnection. 


(Image credit: Angela Nicholson / Digital Camera World)

I kicked off my testing of the OWC Envoy Pro Elektron by connecting it to a 2022 MacBook Air M2 and starting up Blackmagic Disk Speed Test. This registered write speeds of up to around 904MB/s and read speeds of around 663 MB/s. OWC only quotes a single maximum data transfer speed for the Envoy Pro Elektron, it doesn’t break it down into read and write speeds. Clearly, the read speed that I measured is some way short of the claimed maximum transfer rate. 

Nevertheless, the drive performs well in normal use and it took just over 15 seconds to transfer 9.74GB of images comprising 100 Jpegs and 100 raw files from the 45.7Mp Nikon Z7 II from it to the MacBook Air. Transferring the same folder of files from the MacBook Air to the drive took just under 14 seconds. So you’re not left waiting for long periods of time while you copy images across. 

In the time that I’ve had the Envoy Pro Elektron I’ve taken it abroad and carried it around with me without giving it much care, and it’s always worked perfectly well even after falling off my desk or receiving a splash of water. I’ve primarily used it to store images temporarily before I transfer them to a permanent storage drive, but I’ve also found it works as a working drive when editing 4K video. 

The aircraft-grade aluminum outer is designed to help keep the SSD cool, but it heats up quite quickly in use. It doesn’t feel dangerously hot but it will certainly warm your hands on a cold day.

(Image credit: Angela Nicholson / Digital Camera World)

OWC Envoy Pro Elektron: Verdict

The OWC Envoy Pro Elektron is one of the smallest portable SSDs around. It’s a little thicker than the SanDisk Extreme Pro Portable SSD V2, but it’s quite a bit shorter, feels more robust and has a higher dust/water resistant rating. It’s also fast. It doesn’t have the 2000 MB/s transfer speeds of some other SSDs, but it’s still plenty fast enough for image and video storage and functions as a working drive for 4K movies.

It’s good to see a couple of sub-1TB capacity drives available as it brings the price down. The smaller capacity drives makes a good choice for anyone just looking to back-up their camera’s memory card(s) while they are away.

Read more
Best portable hard drives
Best SSDs
Best hard drives for video editing

Thank you for reading 5 articles this month* Join now for unlimited access

Enjoy your first month for just £1 / $1 / €1

*Read 5 free articles per month without a subscription

Join now for unlimited access

Try first month for just £1 / $1 / €1

Angela Nicholson

Angela has been testing camera gear from all the major manufacturers since January 2004 and has been Amateur Photographer’s Technical Editor and Head of Testing for Future Publishing’s photography portfolio (Digital Camera MagazinePhotoPlus: The Canon MagazineN-PhotoPractical PhotoshopPhotography Week and Professional Photography magazines, as well as the Digital Camera World and TechRadar websites).