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Lexar C1 microSD USB-C Card Reader Review

Lexar C1 microSD USB-C Card Reader


The Lexar C1 is a compact microSD card reader that uses a USB 3.1 Type-C (USB-C) connection. The number of card readers offered with USB-C connections is growing as more laptops and devices adopt the USB-C port. The Lexar C1 works only with microSD, microSDHC and microSDXC cards and supports UHS-I. While faster UHS-II microSD cards can be used in the reader, the cards will revert to UHS-I speed.

The reader is made from smooth gray plastic. On one end there is a USB-C connector, which is reversible so the reader can be used in either orientation. The reader measures 1.3 inches (33mm) in length by 0.7 inches (17mm) wide and 0.3 inches (8mm) tall, including the USB-C connector. There is a tiny card indicator light that shines through the small pinhole in the top of the reader. The bottom of the reader indicates the model number LRWMC-7000 B and states the reader is made in China.

The microSD slot is very deep and when a card is inserted it does not extend beyond the end of the reader. Inserting and removing a card is a slightly fidgety affair. The card needs to be inserted deep into the reader and the last few millimeters require more force. Card removal is aided by using a fingernail or thin object to catch the raised lip on the end of the microSD card.

Lexar C1 microSD USB 3.1 Type-C Card Reader bottom


In benchmark testing the Lexar C1 microSD reader reached a highest sequential read speed of 97.5 MB/s. The fastest sequential write speed measurement was 92.2 MB/s. This is very good for UHS-I performance. Unfortunately the reader does not support UHS-II so any UHS-II cards used in the reader will be limited to UHS-I speed. The reader supports UHS-I mode SDR104 which can theoretically provide up to 104MB/s transfer rate.

Reader: Lexar C1 USB-C microSD Reader
Benchmark: CrystalDiskMark 3.0.3 x64
Program settings: 1000 MB, 5 passes, random test data
Operating system: Windows 8.1 Pro
Motherboard: Gigabyte GA-Z77X-UD3H
Processor: Intel Core i7-3770K @ 4.40GHz
RAM: 32GB DDR3 1600

Lexar C1 USB-C microSD Reader
Card Benchmarks
SanDisk Extreme Pro 95MB/s microSDXC 64GB97.49792.191
SanDisk Extreme 90MB/s U3 V30 microSDHC 32GB97.43370.730
SanDisk Extreme 90MB/s U3 V30 microSDXC 128GB97.41563.442
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDXC 64GB97.40691.078
SanDisk Extreme 90MB/s microSDHC 32GB97.38848.577
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDHC 32GB97.38891.475
SanDisk Extreme Pro 95MB/s microSDHC 32GB97.37090.660
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDXC 128GB97.36189.568
SanDisk Extreme 90MB/s U3 V30 microSDXC 64GB97.30772.266
SanDisk Ultra 80MB/s microSD 64GB97.17120.277
SanDisk Extreme Plus 95/90 MB/s microSD 32GB97.13591.109
SanDisk Extreme Plus 95/90 MB/s microSD 64GB97.10890.558
SanDisk Ultra 80MB/s microSD 128GB96.98352.881
Transcend 633x microSDHC 32GB96.67987.156
Lexar Professional 1800x microSD UHS-II 64GB96.64387.403
Patriot EP Series microSDXC 64GB96.62577.215
Lexar Professional 1800x microSD UHS-II 128GB96.57269.410
PNY Pro Elite microSDXC 64GB96.22676.561
PNY Elite microSDXC 64GB96.20032.554
Lexar Professional 1000x UHS-II microSD 128GB96.19157.696
SanDisk Extreme Pro UHS-II 275MB/s microSDXC 64GB96.12081.830
Lexar Professional 633x microSDXC 64GB96.08528.447
PNY Elite-X microSDHC 32GB96.07675.394
Lexar Professional 1800x microSD UHS-II 32GB96.06776.819
Samsung EVO Select microSDXC 256GB96.04186.104
Transcend Ultimate 633x microSD 64GB96.02386.580
Patriot EP PRO microSDXC 64GB95.91876.405
PNY Elite-X microSDXC 64GB95.89271.879
Samsung PRO microSDXC 64GB95.81379.096
Kingston U3 (90/80) microSD 64GB95.80474.984
Samsung PRO Plus microSDXC 64GB95.57787.549
PNY Elite microSDXC 128GB95.53430.209
Samsung PRO Select microSDXC 64GB95.48186.673
Samsung EVO Select microSDXC 64GB95.40325.097
Kingston U3 (90/80) microSD 32GB94.88584.898
Lexar Professional 1000x UHS-II microSD 64GB94.48353.119
Lexar Professional 1000x microSD UHS-II 32GB94.14451.840
Samsung PRO Plus microSDXC 128GB93.05884.176
Samsung PRO Select microSDXC 128GB92.96784.331
SanDisk Extreme 90MB/s microSDXC 64GB92.29643.428
Lexar Professional 633x microSDXC 200GB91.81936.374
SanDisk Ultra 90MB/s microSD 200GB90.69920.543
Lexar Professional 633x microSDXC 128GB86.01922.402
Samsung EVO Plus 128GB microSDXC85.60521.871
Samsung EVO Select microSDXC 128GB84.89822.164
SanDisk Ultra 80MB/s microSD 32GB82.35817.810
Samsung EVO microSD 32GB47.48324.512
Samsung EVO microSDXC 64GB47.40824.194

Compare prices on the Lexar C1 USB-C microSD Reader. The lowest prices are highlighted in the table below.

Card ReaderConnectionModel NumberPrices
AmazonB&H PhotoAdorama
Lexar C1 USB-C microSD ReaderUSB 3.1 Type-CLRWMCBNL$11.99$11.99