Camera Memory Speed
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Lexar Professional 1000x UHS-II 64GB microSDXC Memory Card Review

Lexar Professional 1000x UHS-II 64GB microSDXC Memory Card

Introduction

The Lexar Professional 1000x UHS-II 64GB microSDXC card provides up to 150MB/s read speed and up to 45MB/s write speed. The card is U3 rated for recording HD and 4K continuous video. Its 150MB/s read speed allows fast transfers from the memory card to a computer or mobile device and harnesses UHS-II technology to provide the highest speed. In devices that do not support UHS-II, the card is also compatible with Standard SD and UHS-I including SDR104 mode.

Lexar 1000x microSD cards are available in 32, 64, 128 and 256 GB capacities. The 64GB card model LSDMI64GCBNL1000R Rev C with UPC 650590189595 is tested in this review. The card is made in Korea. Lexar Professional series memory cards have a limited lifetime warranty.

Lexar Professional 1000x UHS-II 64GB microSDXC Memory Card Back

The UHS-II bus interface utilizes a second row of contacts on the microSD card. The top row provides connection to legacy devices at reduced speed.

The card includes a USB 3.0 microSD reader that supports UHS-II. The Lexar LRWM05U-7000 card reader review provides more details about the reader including read and write speed tests with various microSD cards.

Performance

The 64GB Lexar 1000x microSDXC card was tested for read and write speed in several memory card readers. The highest sequential read speed reached 151.2 MB/s, which is alightly above than the 150MB/s rating. The highest sequential write benchmark was 54 MB/s and exceeds the 45 MB/s write speed claim by Lexar. When the card is used in UHS-I devices it is limited in speed. The results for UHS-I card readers show the 1000x card operating in UHS-I mode. It achieved 93.7 MB/s sequential read and 53.1 MB/s sequential write speed benchmarks in UHS-I readers.

When the card was benchmarked in UHS-II card readers that did not support UHS-II in the microSD slot, a UHS-II microSD to SD adapter was used. (This type of adapter is included with Lexar Professional 1800x UHS-II microSD cards). When tested in card readers without UHS-II support the card operates in UHS-I mode at reduced speed.

Card: Lexar Professional 1000x UHS-II microSD 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 1000x UHS-II microSD 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
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader151.20153.685132.3561.60111.1762728.51.733423.08.2032002.71.666406.8
Delkin Multi-Card CFast SD UHS-II microSD Reader151.09253.600137.42118.8907.4131809.71.395340.59.1412231.71.281312.6
Lexar LRWM04U-7000 UHS-II Reader151.07053.471136.60519.2787.9051929.91.498365.88.9182177.31.380337.0
SanDisk Extreme Pro UHS-II SD Reader/Writer151.07053.636135.99820.2407.5071832.71.263308.28.9322180.71.287314.1
ProMaster Professional Dual Card Reader SD UHS-II151.07053.611138.19819.5637.8071906.01.267309.48.9292180.01.437350.8
Lexar LRWM05U-7000 UHS-II microSD Reader151.07053.644133.25717.6187.2911780.11.384337.98.3472037.71.526372.5
Sony S1 High Speed UHS-II Reader/Writer151.02653.997133.14718.37810.1762484.31.775433.37.7901901.81.560380.8
Transcend Multi-Card Reader RDF9150.78753.510136.38019.5577.8651920.11.557380.29.3422280.81.431349.3
Lexar Professional Workflow SR2 UHS-II150.76653.103136.62818.5327.6881877.11.517370.48.7752142.41.372335.0
Lexar Professional Dual Slot UHS-II Card Reader150.76653.203137.44419.5847.8851925.21.557380.28.9902194.71.290314.9
Delkin Dual Slot SD UHS-II and CF Card Reader150.76653.548136.71818.8597.7741897.91.413345.08.9202177.81.293315.7
Kingston MobileLite G4 UHS-II150.72253.455137.12520.60711.2882755.91.688412.18.9212178.01.414345.1
Kingston FCR-HS4 Card Reader150.63653.540137.05719.5787.6491867.51.289314.89.2812266.01.293315.8
SanDisk microSD UHS-II USB 3.0 Reader150.63653.279132.48818.5087.3061783.71.301317.68.6532112.51.424347.6
SanDisk Extreme Pro SD UHS-II USB-C Reader143.34653.674128.31919.6496.7361644.61.366333.58.1911999.81.289314.7
SanDisk Extreme Pro SD UHS-II Reader/Writer143.26853.710128.15019.0366.6141614.81.505367.47.9961952.21.267309.4
Delkin Black Rugged Card Reader142.33453.390120.6061.5719.4272301.61.522371.67.3831802.41.355330.9
Lexar C1 USB-C microSD Reader94.48353.11987.01918.0084.5621113.91.358331.55.4421328.51.260307.7
Transcend Multi-Card Reader RDF8 Black93.69853.12589.40118.2775.4411328.51.278312.16.3911560.31.335325.8
Delkin Universal Memory Card Reader93.58152.65888.8621.51610.0342449.71.502366.76.5211592.11.243303.5
Transcend SD Card Reader RDF5 Black93.28153.16888.14517.2054.4491086.31.126275.05.0131224.01.095267.3
Delkin Travel Reader92.74552.51086.5731.28010.5252569.51.675408.96.7911658.11.374335.4
Lexar LRWM03U-7000 UHS-I microSD Reader92.64752.99687.17817.3494.8591186.41.231300.66.1031490.01.236301.9
SanDisk ImageMate All-In-One USB 3.090.19252.95677.29116.5033.736912.21.275311.24.000976.61.139278.2

Real world performance was tested in a variety of cameras. The average write speed during continuous shooting is shown in the table below. More results will be added when the card is tested in additional cameras.

Lexar Professional 1000x UHS-II microSD 64GB
Tested in Camera
Write Speed
(MB/s)
Canon Rebel T7i48.2
Sony A948.1
Canon 77D47.3
Nikon D750046.6
Panasonic GH542.0

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 1000x UHS-II microSD 64GB microSD — Internal Card Information
Serial number (PSN)3057325889
Product Name (PNM)68BHO
Product Revision0.8
Manufacturer ID (MID)0x000028
OEM ID (OID)BE
Manufacture Date (MDT)02/2017
Total capacity64,087,916,544 bytes

Available sizes and prices

Compare prices on the Lexar Professional 1000x 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 1000x microSD32$0.96$30.70$32.50$30.70
Lexar Professional 1000x microSD64$0.92$73.16$59.95$58.95
Lexar Professional 1000x microSD128$0.96$122.25$122.25$122.25
Lexar Professional 1000x microSD256$0.99$259.99$254.50$259.99