Review: Lexar LRWM05U-7000 microSD UHS-II Card Reader USB 3.0

Introduction

The Lexar LRWM05-7000 microSD card reader is included with Lexar Professional 1000x and 1800x UHS-II microSD cards. It is not sold separately. The card reader supports all microSD cards including standard SD, UHS-I and UHS-II. It supports USB 3.0 and is backwards compatible with USB 2.0.

Externally, the case is has black and gold textured plastic with a tiny hole that could be used to attach it to a string. The reader measures 1 1/4 inches (32mm) in length including the USB plug. It is 11/16 inches (17mm) wide and 3/8 inches (9mm) tall. When an microSD card is inserted it does not protrude past the bottom edge the reader. The card fits snugly in the slot. There is no card indicator light.

Performance

Since this is a "free" card reader one might not expect the best performance, but this diminutive device provided some of the highest transfer speeds among all readers.

Reader: Lexar LRWM05U-7000 UHS-II microSD Reader
Benchmark: CrystalDiskMark 3.0.3 x64
Program settings: 1000 MB, 5 passes, random test data
Operating system: Windows 10 Pro
Motherboard: Gigabyte GA-Z77X-UD3H
Processor: Intel Core i7-3770K @ 4.40GHz
RAM: 32GB DDR3 1600