Camera Memory Speed
Memory Card Comparison & Performance Tests for Digital Cameras

Lexar Professional 1800x UHS-II 64GB microSDXC Memory Card Review

Lexar Professional 1800x UHS-II 64GB microSDXC Memory Card Front

Introduction

Lexar Professional 1800x UHS-II 64GB microSDXC card offers outstanding speed in a tiny form factor to fit smartphones, tablets, and action cameras. The 64GB card is advertised with up to 270MB/s read and 250 MB/s write speeds. This level of performance requires UHS-II but the card is reverse compatible and can operate in UHS-I and standard SD modes. Lexar 1800x microSD cards range in size from 32, 64 and 128 GB capacities. The 64GB version model LSDMI64GCRBNA1800R with UPC 650590191178 is covered in this review.

Lexar Professional 1800x UHS-II 64GB microSDXC Memory Card Back

The back of the card reverals the UHS-II connections in addition to those found on a traditional microSD card. The second row of contacts provides the high speed interface, while legacy devices that lack the pins necessary to interface the UHS-II bus will be limited to UHS-I speed and below. The Professional 1800x cards are sold with the Lexar LRWM05U-7000 microSD UHS-II card reader as well as a UHS-II compatible microSD to full-size SD adapter. The adapter allows the card to be used in other card readers and devides, and maintains its UHS-II capabilities, which would otherwise not be available using a standard microSD to SD adapter.

Lexar covers their Professional series memory cards with a limited lifetime warranty. The card is marked made in Taiwan.

Performance

The Lexar 1800x microSD card was benchmarked in card readers to assess its performance. The highest speed was reached using UHS-II card readers where the 1800x microSD card measured up to 300.5 MB/s sequential read speed which is better than the 270 MB/s claimed by Lexar. Sequential write speed measured 248.3 MB/s, slightly less than the 250 MB/s rating. In UHS-I card readers, the 1800x card reverted to UHS-I mode and was limited to 96.7 MB/s read and 88.1 MB/s write speeds. Still fast, but not quite as fast as the fastest UHS-I microSD cards.

Note: In multi-card readers, this UHS-II microSD card was tested in the incuded microSD to SD UHS-II adapter. Although several multi-card readers support UHS-II, it is only in the full-size slot and not the microSD slot. Testing in non-UHS-II microSD slots provides only UHS-I speed.

Card: Lexar Professional 1800x microSD UHS-II 64GB
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 Professional 1800x microSD UHS-II 64GB
Card Reader Benchmarks
Seq.
Read
1000MB
MB/s
Seq.
Write
1000MB
MB/s
Rand.
Read
512KB
MB/s
Rand.
Write
512KB
MB/s
Rand.
Read
4KB
MB/s
QD1
Rand.
Read
4KB
IOPS
QD1
Rand.
Write
4KB
MB/s
QD1
Rand.
Write
4KB
IOPS
QD1
Rand.
Read
4KB
MB/s
QD32
Rand.
Read
4KB
IOPS
QD32
Rand.
Write
4KB
MB/s
QD32
Rand.
Write
4KB
IOPS
QD32
Delkin Black Rugged Card Reader300.452248.331212.3963.02011.8862901.81.369334.312.5833072.01.492364.2
SanDisk Extreme Pro SD UHS-II Reader/Writer277.291232.655198.5022.91013.4883292.91.506367.614.4673532.01.395340.7
SanDisk Extreme Pro SD UHS-II USB-C Reader277.218231.270204.7793.03213.1773217.01.638399.914.3753509.61.449353.7
Lexar LRWM04U-7000 UHS-II Reader272.322224.174205.0243.07214.0463429.11.488363.314.7813608.61.484362.3
Lexar Professional Workflow SR2 UHS-II271.969224.390203.5902.91514.0063419.51.605391.914.9883659.21.444352.7
Sony S1 High Speed UHS-II Reader/Writer269.384225.210200.8502.85812.6973099.91.329324.513.6923342.71.512369.0
Lexar Professional Dual Slot UHS-II Card Reader250.706207.845182.2862.88615.3353743.81.521371.416.4324011.81.456355.4
ProMaster Professional Dual Card Reader SD UHS-II248.596209.213191.7603.12415.7023833.61.480361.316.8284108.41.433349.9
Delkin Dual Slot SD UHS-II and CF Card Reader247.627208.589188.1792.89315.3973759.11.504367.216.9134129.11.437350.9
Kingston FCR-HS4 Card Reader246.318207.003185.2672.90914.8053614.61.498365.816.7074078.91.536374.9
Transcend Multi-Card Reader RDF9244.737205.382186.4992.97715.5343792.51.409344.117.0074152.11.407343.4
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader244.110204.560192.0792.82214.2973490.41.511369.015.0533674.91.421346.9
SanDisk microSD UHS-II USB 3.0 Reader243.742205.482187.8362.82514.5593554.41.491363.916.3613994.51.416345.6
Kingston MobileLite G4 UHS-II239.702205.704184.0522.90715.6793827.91.460356.416.7274083.71.438351.1
Lexar LRWM05U-7000 UHS-II microSD Reader237.315201.533194.6962.81912.2372987.71.645401.614.1643458.11.468358.5
SanDisk Extreme Pro UHS-II SD Reader/Writer223.410203.666180.8192.88515.5653800.01.584386.816.9374134.91.431349.3
Delkin Multi-Card CFast SD UHS-II microSD Reader218.431211.449183.2562.96016.8214106.71.504367.117.8364354.51.513369.5
Delkin Universal Memory Card Reader96.66187.57187.4691.9219.7102370.61.442352.110.9372670.31.009246.5
Lexar C1 USB-C microSD Reader96.64387.40384.9681.9087.5041832.11.499366.08.1191982.21.175287.0
Delkin Travel Reader96.59888.08686.0762.04610.1092468.11.081263.911.1672726.31.051256.5
Transcend Multi-Card Reader RDF8 Black96.42187.72587.7972.1679.7882389.61.567382.710.7422622.71.139278.1
Lexar LRWM03U-7000 UHS-I microSD Reader95.02387.54986.0901.9188.3082028.31.298316.99.5732337.21.251305.3
Transcend SD Card Reader RDF5 Black94.85187.61585.6621.8817.0121711.91.277311.77.2411767.91.053257.1
SanDisk ImageMate All-In-One USB 3.093.96784.62477.0761.8615.1781264.21.730422.45.2781288.51.065260.1

The table below will show in-camera speed tests as new cameras are tested with this card.

Lexar Professional 1800x microSD UHS-II 64GB
Tested in Camera
Write Speed
(MB/s)
Sony A9148.6
Panasonic GH590.3
Canon Rebel T7i81.0
Canon 77D80.7
Nikon D750078.8

Cameras tested with this card: Canon 77D, Canon Rebel T7i, Nikon D7500, Panasonic GH5, Sony A9

The following table contains information encoded in the SD card.

Lexar Professional 1800x microSD UHS-II 64GB microSD — Internal Card Information
Serial number (PSN)3662843576
Product Name (PNM)7YDLP
Product Revision0.7
Manufacturer ID (MID)0x000027
OEM ID (OID)PH
Manufacture Date (MDT)02/2017
Total capacity64,172,851,200 bytes

Available sizes and prices

Compare prices on the Lexar Professional 1800x UHS-II microSD card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
Lexar Professional 1800x UHS-II microSD32$1.63$72.95$55.25$52.25
Lexar Professional 1800x UHS-II microSD64$1.95$124.95$124.95$124.95
Lexar Professional 1800x UHS-II microSD128$1.25$159.99$166.95$166.95