
Professional’s Ranking
Professionals
- Small and simply transportable
- Each USB-A and USB-C ports supported
- As much as 4TB of capability
Cons
- Awkward port cowl
- Quicker Gen 2×2 drives round
Our Verdict
The development of the EX100U isn’t as sturdy as we’ve seen from different manufacturers, however the performance inside is superb. For the most effective efficiency, you want a USB 3.2 Gen 2×2 port, however even with a typical Gen 2 USB port it’s fairly fast.
Value When Reviewed
From $90.99 | Mannequin reviewed $184.99
Finest Costs At this time: Corsair EX100U
$107.99
Corsair has created some thrilling SSD expertise up to now few years, particularly concerning NVMe drives. However till lately, its exterior storage choices principally pivoted round its Flash Voyager vary, a profitable design that dates again some appreciable time.
With Essential, SanDisk, Seagate and others promoting loads of exterior SSDs, it was about time that Corsair entered this slice of the market with one in all its uniquely styled choices, and the EX100U is that product.
Is that this the fitting drive to compete with the Essential X8 and SanDisk Excessive, or has it come too late for the exterior SSD occasion?
Design & Construct
The EX100U is a particular design which may confuse some purchasers initially.
It’s a silvery gray plastic lozenge measuring 79.37 x 36.65 x 11mm, with a lanyard slot at one finish and a rubberised cap on the different. I estimate that’s sufficiently big to have a 2240 M.2 NVMe inside, however that scale could be a coincidence.
What isn’t obvious once you first take away it from the packaging is that the rubber cap is detachable, although there are not any different locations for an exterior connection, so finally, I concluded it should be below there.

Mark Pickavance
It could actually stand up to as much as 500Gs of acceleration, even when the particular person holding that drive wouldn’t
Because the USB-C port behind the plug is recessed, and Corsair doesn’t declare the EX100U is waterproof, aside from stopping the ingress of mud to the port, why it’s included the plug is unclear past neatness.
What’s claimed by Corsair for the EX100U is that it could possibly stand up to as much as 500Gs of acceleration, even when the particular person holding that drive wouldn’t, and it’s also vibration resistant.
Within the field are two cables, one every for USB-C and USB-A ports, however no carry pouch to carry them when not related to the drive or a lanyard. The cables are an honest 30cm lengthy, and because of the drive solely weighing 22g, having the drive dangle on the cable whereas hooked up to a desktop system most likely isn’t a problem.
One delicate annoyance is that I didn’t discover any exercise LED on the drive, one thing we’d sometimes anticipate.
Specs & Options
I’m so glad that Corsair doesn’t provide foolish 250- or 500GB fashions and as an alternative opted for 3 capacities that individuals will extra possible need and use, particularly 1-, 2- and 4TB.
Internally these are 3D NAND wafers wired to a Phison PS2251-18 controller and different electronics to facilitate a connection to the USB interface. Corsair quotes the identical efficiency for all of the capacities, and it additionally states that it doesn’t use a DRAM cache, however as an alternative has allotted among the NAND as a static pSLC cache.
It’s terrific to see a drive maker being so open in regards to the internals of its drives somewhat than hiding the controller or cache mechanism prefer it’s a commerce secret. And I commend Corsair for its candid method.
The maker additionally quotes a TBW (whole bytes written) worth for every drive dimension, which is uncommon, and these begin at 250TB for the 1TB mannequin after which enhance to 500TB for the 2TB and 1000TB for the 4TB. These could be acceptable TBW values for M.2 NVMe inner drives with a lot larger speeds, so the probability of those limits being skilled by house owners of the EX100U is on the low aspect.

Mark Pickavance
Whereas the controller on these drives operates rubbish assortment and SMART assist, these models don’t assist the TRIM operate or have {hardware} encryption.
In all probability the largest promoting level of the EX100U is the USB interface helps older USB requirements but additionally embraces the often-ignored Gen 2×2 normal. Whereas the variety of machines with Gen 2×2 ports is comparatively small, those that have it could possibly expertise a doubling of the potential bandwidth out there over USB 3.2 Gen 2 brings the throughput in keeping with that of Thunderbolt 3.
For many customers with solely Gen 2, the speeds on provide listed here are roughly 1,000MB/s, each learn and write, with a Gen 2×2 port permitting as much as 1,600MB/s reads and 1,500MB/s writes, regardless of capability dimension.
The 2TB evaluation mannequin got here pre-formatted in exFAT, making it straight useable on any fashionable PC working Home windows. And it could possibly simply be reformatted to make use of with macOS or Linux for these working techniques.
Total, the EX100U has the vital options to present Essential, SanDisk and Kingston some competitors on this slice of the SSD market. However does it have the efficiency?
Efficiency
Whereas my take a look at gear has a USB 3.2 Gen 2×2 port, it ought to be realised that the majority techniques don’t have this model of USB, and it’s a vital requirement to get probably the most out of the EX100U.
This isn’t the quickest Gen 2×2 drive out there, nevertheless it’s no less than 50% higher than drives that solely assist Gen 2 mode
Due to this fact, the speeds quoted listed here are considerably higher than customers would expertise on USB 3.2 Gen 2, which might hit a restrict of round 1,000MB/s for each studying and writing.
Utilizing CrystalDiskMark 8.0.4 in default mode, the EX100U managed 1,701MB/s reads and 1,564MB/s writes, higher than the quoted efficiency. These outcomes had been supported by ATTO, reaching a peak of 1.69GB/s reads and 1.61GB/s writes.

Mark Pickavance
However most likely probably the most lifelike take a look at was AS SSD, which rated this drive at 1,476MB/s and 1,413MB/s for studying and writing, barely shy of the quoted speeds.
On this similar benchmark, the Kingston XS2000 managed 1881MB/s reads and 1720MB/s writes, near the utmost that Gen 2X2 bandwidth can obtain.
Due to this fact, this isn’t the quickest Gen 2×2 drive out there, nevertheless it’s no less than 50% higher than drives that solely assist Gen 2 mode.
Value
As we’ve come to anticipate from Corsair, the EX100U isn’t the most affordable exterior SSD round, nevertheless it’s fairly priced for its capability and efficiency.
Within the USA, the MSRPs for the 1-, 2- and 4TB are $90.99, $184.99 and $464.99, respectively. These prices translate into £99.99, £199.99 and £489.99 within the UK and €109.99, €219.99 and €549.99 in Europe.
As a rule, regardless of area or foreign money, the 2TB mannequin affords the most effective cost-per-GB deal, and the 4TB is the costliest choice per GB. You should buy it from Corsair and retailers together with Scan within the UK and Amazon virtually all over the place.
The competitor product that the EX100U competes with most intently is the Kingston XS2000, providing a really related dimension and enhanced efficiency over USB 3.2 Gen 2×2.
On Amazon.com, the Kingston XS2000 sells for $109.99, $199.99 and $555.06 for the three similar capacities as Corsair affords on the EX100U. That makes it a bit dearer than the EX100U, however it’s marginally quicker.

Mark Pickavance
Total, the present pricing of the EX100U is undoubtedly larger than the place it’s prone to relaxation as soon as preliminary calls for are met, and the channel restocks. For these solely concerned with Gen 2 appropriate drives with bigger capacities, the Essential X6 is simply $329.99 for the 4TB mannequin. If you happen to don’t have Gen 2×2 ports out there, these drives can carry out at a lot the identical velocity because the EX100U, representing higher worth.
Try our chart of the most effective moveable laborious drives and SSDs for extra choices.
Verdict
We discover ourselves in a wierd expertise doldrum, to make use of a crusing reference, a useless house the place the prevailing winds of change refuse to blow.
Because of this, USB 3.2 Gen 2×2, a expertise that the majority expertise pundits had handed over as area of interest and a stop-gap measure, seems to be getting sudden assist from the Corsair EX100U and the Kingston XS2000, amongst others.
To be clear, this can be a false daybreak for Gen 2×2 expertise within the medium time period.
As soon as USB 4.0 seems in power with its superior bandwidth and potential Thunderbolt compatibility, the resurgence of this USB flavour is prone to sink with out a hint. USB 4.0 doesn’t embrace assist for two×2 mode, changing it with an equal bandwidth protocol that’s not backwards appropriate.
In the meantime, the Corsair EX100U is an effective choice for these fortunate sufficient to have Gen 2×2 ports on their techniques, even when it isn’t the quickest drive of this flavour we’ve examined.

Mark Pickavance
Specs
- Interface: USB 3.2 Gen 2×2
- Pace: 1600MB/s learn and 1500MB/s write
- Capacities: 1TB, 2TB and 4TB
- Dimensions: 79.37 x 36.65 x 11 mm
- Weight: 22 g
- Casing materials: plastic
- Working temperature: 0° C~70° C
- Guarantee: Restricted 3-year guarantee
- Appropriate with: macOS 10.13+ (Time Machine appropriate), Home windows 10+