1. Meet the Lexar JumpDrive M20 USB3.0 drive
Today we will run some benchmarks with the new Lexar JumpDrive M20 Mobile USB 3.0 flash drive. The small device allows you to transfer and share photos, music, videos, and files between your On-The-Go (OTG)-enabled Android tablet, smartphone, or computer, without cables or Wi-Fi.
The small drive leverages USB 3.0 performance with up to 120MB/s read transfer and and 55MB/s write speeds. Of course, it remains backwards compatible with USB 2.0 devices.
The drive is available in capacities of 16GB (up to 120MB/s read and 20MB/s write), 32GB (up to 120MB/s read and 55MB/s write) and 64GB (up to 120MB/s read and 55MB/s write).
You can also download a file management app like ASTRO File Manager from the Google Play store to easily manage files from the cloud and mobile devices.
- Available capacities
- 16GB (LJDM20-16GBSBNA), 120MB/s read 20MB/s write
- 32GB (LJDM20-32GBSBNA), 120MB/s read 55MB/s write
- 64GB (LJDM20-64GBSBNA), 120MB/s read 55MB/s write
- Connectivity: micro-USB and USB 3.0 (USB 2.0-compatible)
- Compatibility: Windows and Mac
- Warranty: 3 years
Let's have a closer look to the device. The Lexar JumpDrive M20 Mobile 32GB USB3.0 retails in the package you see below and will cost approximately $27at Amazon..
The basic feature of the M20 flash drive design is the thumb slider. There is no need for a cap - which could easily be lost - and the blue, a bit delicate slider should be used to retract or detract the USB 3.0 connector on one end and the micro-USB connector on the other.
Since USB OTG is not supported by every smartphone and tablet, you'll need to check the device specifications. Lexar says that the M20 requires Android platform 4.1 or higher with USB On-The-Go (OTG) compatibility.
We first tested the device on a Sony Ericsson Xperia Neo V smartphone, with Android v4.0.4 installed but not OTG support. The smartphone recognized that something was plugged in but it failed to list the device.
We also plugged the DataTraveler microDuo into an LG G Pad 8.3 with android v4.4.2 and OTG Support. The tablet immediately recognized the device and worked just fine.
Windows phone devices will most probably work, as soon as Windows Phone 8.1 has been installed.. As for iPhone users, you are out of luck with this product since Apple's devices have not a compatible USB port.
We also plugged the Lexar JumpDrive M20 Mobile 32GB into a PC through a USB 3.0 plug. We had absolutely no trouble on the Windows machine. The drive is factory formatted with the FAT32 file system. Useable capacity after formatting is 29.7GB.
So the next step is to run some benchmarks.
The CrystalDiskMark 3.0.2e x64 edition benchmark returned a 143.6 MB/sec sequential transfer rate for read and 41.65 MB/sec for write. The performance of Lexar's 's drive was also high for the category while accessing 512K files (130.9 Mb/s), although writing was slower. Reading small 4K/4K QD32 files was not very fast, mainly in the writing part, meaning that this device will get a rather long time to write small files from you Android smartphone:
The ATTO Disk Benchmark returned similar sequential read/write speeds:
Below you see the relatively cosistent reading performance of the drive:
The AS SSD benchmark confirmed previous findings:
The drive will write and read files in a similar manner whether they can be compressed ot not:
HDTune Pro returned an maverage of 120.7 MB/s for sequential reading:
The Lexar M20 flash drive is a smart accessorie for Android users that are overloading the storage usage of their mobile devices and need an extra some extra storage space. But most importantly, it allows them to easily share between a PC and mobile device using a single thumb drive.
The drive comes with a thumb slider which allows you to switch from USB 3.0 to micro-USB. The design is interesting, but it doesn't slide smoothly and sometimes takes some effort to open or close.
Before getting the device, make sure your mobile /tablet is supports OTG. In addition, you may find it hard to plug the device into your smartphone or tablet has a protective case, espacially a bit bulky ones.
Considering it was designed for Android functionality, the drive's read and write capabilities work well for almost any storage request I.E. pictures, movies and or files. In testing the drives' sequential performance, we reached 144 MB/s for read and 41 MB/s for write.
The Lexar JumpDrive M20 Mobile USB 3.0 (32GB) is a convenient, mobile-friendly storage solution, if you are looking for zippy performance over USB 3.0. However, the drive itself is a little bulkier than we'd like. although its price is in par with competing drives.