OWC Envoy Pro SX 960GB Portable SSD Review

OWC is bringing the full power of Thunderbolt 3 in a rugged, waterproof, dustproof, and compact enclosure with the Envoy Pro SX.

@JonCoulterSSD
Published Wed, Oct 20 2021 8:50 AM CDT
Rating: 99%Manufacturer: OWC (OWCTB3ENVPSX01)

Introduction & Drive Details

OWC has a new portable SSD. The Envoy Pro SX is essentially a refined version of OWC's award-winning Envoy Pro EX. Refinements include a removable Thunderbolt 3/USB 4 cable and downsizing the ultra-rugged enclosure by 1/3, for increased portability. The SX version may be more compact, but it still retains all the features of its predecessor, including being dustproof, drop-proof, and waterproof for up to 30 minutes at 1-meter depth.

Like its predecessor, the Envoy Pro EX, the Envoy Pro SX delivers the ultimate in portable performance, and it too is bus-powered. No power adapters are required; we love that. Capable of delivering up 2,800 MB/s throughput via Thunderbolt 3, the Envoy Pro SX is right in there with the fastest portable solutions in the world. As we see it, the Envoy Pro represents the very pinnacle of ultra-fast portable storage in every way.

Enclosure Details

OWC Envoy Pro SX 960GB Portable SSD Review 01 | TweakTown.com
VIEW GALLERY - 27 IMAGES
OWC Envoy Pro SX 960GB Portable SSD Review 02 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 03 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 04 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 05 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 06 | TweakTown.com

At 8 ounces, this thing is beefy. Encased in a ½ pound solid aluminum casing, the Aura P12 Pro 1TB (960GB) at the heart of the matter has little chance of overheating no matter the workload. The OWC Aura P12 Pro that drives the Envoy SX to record-level performance is the result of a collaborative effort between Phison Electronics and Other World Computing (OWC). The Aura P12 Pro is Phison E12S controlled with a quality 96L BiCS 4 flash array and onboard DRAM. The good stuff.

Jon's Test System Specifications - Intel NUC 11 Pro

OWC Envoy Pro SX 960GB Portable SSD Review 07 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 08 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 09 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 10 | TweakTown.com

Note: For USB 3.2 Gen2 x2 SSDs, we test on our Z590 system set to match our Intel NUC 11 specs (4.8GHz, 8-threads, DDR4 3200, balanced power plan).

Buy at Amazon

OWC Envoy Pro SX 960GB Portable SSD

TodayYesterday7 days ago30 days ago
$269.00$269.00$269.00
* Prices last scanned on 11/29/2021 at 6:15 pm CST - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

Synthetic Benchmarks: CDM, ATTO & Blackmagic

CrystalDiskMark

OWC Envoy Pro SX 960GB Portable SSD Review 11 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 12 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 13 | TweakTown.com

For whatever reason, our NUC would not quite get us to 2,800 MB/s throughput. No matter, this is close enough, and its 2,600 MB/s sequential write throughput is almost otherworldly. Then when we factor in its astounding 4K Q1T1 random performance, we feel as though this might be the best overall CDM performance we've seen from a non-RAID portable storage device. Impressive.

ATTO

OWC Envoy Pro SX 960GB Portable SSD Review 14 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 15 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 16 | TweakTown.com

100% full speed at QD4 128K transfers and a beautifully consistent pattern that doesn't show any signs of throttling as transfer sizes climb higher. Everything we want to see, including more than 50MB/s at 512B transfers.

Blackmagic

OWC Envoy Pro SX 960GB Portable SSD Review 17 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 18 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 19 | TweakTown.com

OWC touts the Envoy Pro SX as being the ideal portable on-set project drive for editing dailies, and as Blackmagic demonstrates, it can easily handle even 4K 60 fps duties. Wow.

Real-World Testing: PCMark 10 & Transfer Rates

PCMark 10 Data Drive Benchmark

OWC Envoy Pro SX 960GB Portable SSD Review 20 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 21 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 22 | TweakTown.com

The OWC Envoy Pro SX delivers a new lab record for ANY portable, including the massive 16TB XTRM-Q running in RAID 0. Otherworldly is right.

Transfer Rates

OWC Envoy Pro SX 960GB Portable SSD Review 23 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 24 | TweakTown.com
OWC Envoy Pro SX 960GB Portable SSD Review 25 | TweakTown.comOWC Envoy Pro SX 960GB Portable SSD Review 26 | TweakTown.com

We brutalize our test subjects with our extremely hard-to-swallow 100GB data block. This data block is the same one we use for our internal SSD testing and is composed of more than 62K files. Unsurprisingly, the Envoy Pro SX delivers the best we've seen from a non-RAID portable storage device.

Final Thoughts

The Envoy Pro SX is portable storage at its finest. OWC has again outdone itself with this portable masterpiece. 2,800 MB/s throughput encased in a nearly indestructible, compact, and thermally effective housing is indeed something special. The Envoy Pro SX is an elite performer forged from the highest quality components and is worthy of TweakTown's highest award.

OWC Envoy Pro SX 960GB Portable SSD Review 27 | TweakTown.com

Pros

  • Bus Powered
  • Throughput
  • Professional Grade

Cons

  • None
Buy at Amazon

Performance

99%

Quality

100%

Features

100%

Value

98%

Overall

99%

The Bottom Line

Nearly perfect in every way, the Envoy Pro SX is as good as it gets.

TweakTown award
99%

OWC Envoy Pro SX 960GB Portable SSD

TodayYesterday7 days ago30 days ago
$269.00$269.00$269.00
* Prices last scanned on 11/29/2021 at 6:15 pm CST - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

Jon joined the TweakTown team in 2013 and has since reviewed 100s of new storage products. Jon became a computer enthusiast when Windows XP launched. He was into water cooling and benching ATI video cards with modded drivers. Jon has been building computers for others for more than 10 years. Jon became a storage enthusiast the day he first booted an Intel X25-M G1 80GB SSD. Look for Jon to bring consumer SSD reviews into the spotlight.

Newsletter Subscription
We openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion. If any company representative wishes to respond, we will publish the response here. Please contact us if you wish to respond.
Newsletter Subscription
Latest News
View More News
Latest Reviews
View More Reviews
Latest Articles
View More Articles