Best USB 3.2 Flash Drives for Portable Backup & File Transfers

 July 2022         Ian Chiu

We put seven USB 3.2 drives from Corsair, Kingston, Samsung, and Sandisk to test.  They all come from reliable brands that have been in the flash drive business since the inception of the product category.  And for the purpose of the article, we picked drives that strike a balance between form factor and performance. In our July 2022 update, we also added Samsung’s USB Type-C Drive to the comparison.

For those of you who value size over speed, mini USB drives serve well as semi-permanent storage for your laptops.  Likewise, if you need a drive for data exchange between USB-C and legacy USB ports, dual-headed flash drives are just what you need but speeds don’t match the ones featured in this article.

Assuming you have the right port (i.e. USB 3.2 Gen 2×1) to match, Kingston DataTraveler Max provides a great performance-to-price ratio and hence is the best choice for power users.  Its performance stands head and shoulders above nearly all competitors and is one of the fastest thumb drives given its form factor.  You will find the drive quite handy when you need to do a system recovery and run / install Windows on a flash drive.

The drive also comes with a retractable USB-C connector and five years of warranty.  Through an optional USB-A to USB-C adapter, it maintains backward compatibility with legacy USB-A ports.   For its intended purpose, the DataTraveler Max has earned our recommendation.

Should you find DataTraveler Max to be a tad too bulky, the next best options are Samsung USB Type-C Flash Drive and Sandisk Extreme Pro.  The former is only one-third the length of the Max, yet it delivers admirable read performance for its size.  The Sandisk has shown consistently robust performance across the board, putting it well ahead of the Samsung USB Type-C in write operations.

	Corsair Flash Voyager GTX See it on Amazon $66.99 for 256GB	Kingston DataTraveler Max See it on Amazon $30.88 for 256GB	Kingston DataTraveler Kyson See it on Amazon $26.90 for 256GB	Samsung USB Type-C Drive See it on Amazon $32.99 for 256GB	Samsung BAR Plus See it on Amazon $30.99 for 256GB	Sandisk Ultra USB-C See it on Amazon $23.99 for 256GB	Sandisk Extreme PRO See it on Amazon $57.99 for 256GB
Connector:	USB-A	USB-C	USB-C	USB-C	USB-A	USB-C	USB-A
Storage:	128GB - 1TB	256GB - 1TB	32 - 256GB	64 - 256GB	32 - 256GB	32 - 256GB	256GB - 1TB
Interface(s):	USB 3.2 Gen 1 (5Gbps)	USB 3.2 Gen 2 (10Gbps)	USB 3.2 Gen 1 (5Gbps)	USB 3.2 Gen 1 (5Gbps)	USB 3.2 Gen 1 (5Gbps)	USB 3.2 Gen 1 (5Gbps)	USB 3.2 Gen 1 (5Gbps)
UASP?	Yes	Yes	No	No	No	No	No
Movie Read: (10GB MP4)	392.42MB/s	725.08MB/s	239.99MB/s	349.07MB/s	284.44MB/s	149.72MB/s	283.76MB/s
Movie Write: (10GB MP4)	134.38.MB/s	552.52MB/s	48.14MB/s	108.86MB/s	41.75MB/s	22.82MB/s	224.88MB/s
Photo Read: (5GB JPEGs)	305.08MB/s	527.08MB/s	214.04MB/s	275.48MB/s	223.67MB/s	133.35MB/s	213.04MB/s
Photo Write: (5GB JPEGs)	103.76MB/s	364.49MB/s	42.15MB/s	87.27MB/s	38.41MB/s	12.38MB/s	121.81MB/s
Retractable Connector?	No	Yes	No	No	No	Yes	Yes
Dimensions:	78 x 26.4 x 10.8mm	82.2 x 22 x 9mm	39 x 12.6 x 4.9mm	33.7 x 15.9 x 6.4mm	15.6 x 40 x 11.7mm	59.4 x 12.6 x 8.6mm	71 x 21 x 11mm
Build Material:	Zinc alloy	Plastic	Aluminum alloy body with plastic keychain loophole	Plastic	Metal unibody	Plastic	Plastic body with aluminum alloy
Color(s):	Black	Black	Silver	Blue	Frozen black, silver	Black	Black
Software:	None	None	None	None	None	SanDisk SecureAccess, RescuePRO	SanDisk SecureAccess, RescuePRO
Release Date:	Jan 2015	Aug 2021	Oct 2020	July 2022	April 2018	Jan 2020	Jan 2017
Warranty:	5 years	5 years	5 years	5 years	5 years	5 years	Lifetime

Pricing is last updated by Amazon on 2023-05-28 at 11:29.  When you buy through Amazon affiliate links on our site, we may earn an affiliate commission.

Our tests were carried out on Nodesoft’s DiskBench on a 2019 MacBook Pro with 10Gbps USB-C ports.  Note that having USB-C onboard has nothing to do with the speed of the drives.  A USB-C thumb drive can be sold as a USB 3.2 Gen 1 (5Gbps) or USB 3.2 Gen 2×1 (10Gbps) storage device.

Kingston DataTraveler Max’s impressive transfer speeds, from the graph below, put the drive ahead of the competition in our 10GB MP4 file benchmark.  Still, it’s best to keep in mind that the Max is USB 3.2 Gen 2 (10Gbps) while others reviewed here are limited by their USB 3.2 Gen 1 interface (5Gbps).

Our only caveat was that the Kingston DataTraveler Max started to throttle after the 20GB mark during a 40GB write endurance test on our 256GB unit.  We witnessed speeds dropping to 80MB/s from 550MB/s.  The reason behind this could be the drive’s lack of a proper thermal solution with firmware caps kicking in to avoid the drive from overheating.  Running out of SLC cache during sequential write for such a large file could also be the cause of throttling.

Corsair Flash Voyager GTX – essentially an SSD coupled with a USB 3.0 to SATA controller – didn’t suffer from the same throttling issue during this endurance test.  Due to the SATA limitation and 5Gbps USB-A interface, GTX’s overall speeds were no match against the DataTraveler Max.  It’s also worth noting that the GTX – like Kingston’s Max – is both USAP- and TRIM-enabled, meaning the drive is basically an SSD in a thumb drive form factor and should excel in IO-intensive tasks.

Also included in our benchmark involved copying back and forth a thousand JPEGs totaling 4.7GB between the flash drives and our laptop. This test confirmed the level of performance you can expect when transferring small files in bulk.  Keep in mind manufacturers usually don’t advertise benchmarks for small file-sized operations so your mileage may vary.  Having said that, Kingston DataTraveler Max continued to lead by a sizeable margin in small file benchmarks.

The Sandisk Extreme Pro delivered solid all-around performance, especially if you want a USB plug slider.  But if you are looking for something small, then Samsung USB Type-C Flash Drive won’t disappoint either.

Design-wise, the Corsair Flash Voyager GTX’s zinc alloy body adds to its toughness as well as weight.  It is clearly built to take a beating, suffice to say.  The flash drive should be able to easily survive after a drop or after being run over by a vehicle occasionally.  Our only gripe with the chassis is that it’s very prone to scratches which make the drives lose some of their appeals over time.  It’s worth mentioning that the Corsair has a wider-than-normal profile which poses a problem in accessing horizontally adjacent ports.  Corsair opts for a removable metallic cap that fits snugly with the drive’s USB plug – thanks to the cap’s rubber seal interior.

In contrast to the Corsair, Kingston DataTraveler Max is an all-plastic affair.  We had hoped Kingston opts for more premium building materials that add durability to the drive’s body.   The unit comes with a retractable USB-C plug as well as a keychain loophole.  In terms of size, the DataTraveler Max is slimmer and lighter than the Flash Voyager GTX.  It is significantly wider than other USB-C drives reviewed here.  Hence, plugging the DataTraveler Max into a laptop will likely block access to a neighboring port if there’s one.

As for the Samsung line-up, the Bar Plus sports a minimalist aluminum alloy body with a Type-A port.   Its much smaller sibling comes with a USB Type-C port and is encased in a plastic body.

Moving onto Sandisk’s offerings, the contoured-shaped Extreme Pro goes with the company’s tried-and-true USB slider mechanism with an outer shell that is made of aluminum alloy to improve its durability.  The minimalist Ultra USB-C drive, however, is built with flimsy plastic material and its slide-out connector mechanism leaves something to be desired. 

iPad users may want to know the Sandisk Ultra USB-C is the only flash drive featured here that will directly plug into a compatible USB-C iPad with a case on.  For other drives, a USB-C to USB-A adapter or a USB-C dock might not be the most elegant solution but works without a noticeable performance penalty.

Preview	Product	Rating	Price
	Corsair Flash Voyager GTX 256GB USB 3.1 Premium Flash Drive	1,344 Reviews	$66.99	See it on Amazon
	Kingston DataTraveler Max 256GB USB-C Flash Drive with USB 3.2 Gen 2...	423 Reviews	$37.99 $30.88	See it on Amazon
	Kingston DataTraveler Kyson 256GB High Performance USB 3.2 Metal Flash...	6,593 Reviews	$29.99 $26.90	See it on Amazon
	SAMSUNG Type-C™ USB Flash Drive, 256GB, Transfers 4GB Files in 11 Secs...	2,405 Reviews	$39.99 $32.99	See it on Amazon
	Samsung BAR Plus 256GB - 400MB/s USB 3.1 Flash Drive Titan Gray...	4,244 Reviews	$30.99	See it on Amazon
	SanDisk 256GB Ultra USB Type-C Flash Drive - SDCZ460-256G-G46	1,770 Reviews	$64.99 $23.99	See it on Amazon
	SanDisk 256GB Extreme PRO USB 3.2 Solid State Flash Drive -...	3,274 Reviews	$67.99 $57.99	See it on Amazon

Pricing is last updated by Amazon on 2023-05-28 at 11:29.  When you buy through Amazon affiliate links on our site, we may earn an affiliate commission.

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