Patriot Magnum2 USB 3.1 Flash Drive Review (256GB)

A great indication of how far we have come in flash technology lies in flash drives themselves, where we see today’s flash drives capable of transfer speeds of yesterday’s solid state drives.   While the difference between the two is still vast, the advance of USB versions has seen us move from 35MB/s with USB 2.0 to over 20x that with USB 3.1 and the sky is the limit when we look at USB Type C becoming commonplace in the near future. Type C holds promise as the Type C connector is capable of so much more than just data transfer, that of which includes the ability to run 4K video and recharge a device through the new connector.

Patriot Supersonic Magnum2 USB 3.1 256GB Flash Drive On Cap

Still, as easy as it was to follow the advance of USB version numbers, we then added Super Speed before finally incorporating SS and cleaning things up to USB 3.1 Gen 1 (5Gbps) and USB 3.1 (Gen 2 (10Gbps).  Our report today looks at the USB 3.1 Gen 1 Patriot Supersonic Magnum2 256GB Flash Drive. It is rated at 400MB/s read and 300MB/s write data transfer speeds.

Patriot Supersonic Magnum2 USB 3.1 256GB Flash Drive Package Front

The Patriot Supersonic Magnum2 is a USB 3.1 Gen 1 flash drive that is fully backward compatible with USB 2/3 devices.  It has listed transfer speed specifications of 400MB/s read and 300MB/s write and the case is aluminum and sustainable of up to 15G of shock resistance.  A huge plus that we see right off with this flash drive is that it comes with a standard 5 year warranty.

Patriot Supersonic Magnum2 USB 3.1 256GB Flash Drive

Checking Amazon, we can see size availability and pricing at $39.99 for the 64GB, $134.99 for the 128GB, $99.99 for the 256GB and $189.99 for the 512GB version…which means… the 256GB version we are reviewing today is on sale at a great price!  Let’s take a look at a few benchmarks.


ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.

Patriot Magnum2 256GB Flash Drive ATTO 3

Not really a great start as we see transfer speeds increase until the 256MB transfer size, at which time they leveled off and remained for the remainder of the test.  We repeated this numerous times in three different systems and similar results were realized in each.  This is not necessarily to say that it may be any more than a compatibility issue between the device and ATTO, which is why we conduct multiple tests.