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

Kingston U3 64GB microSDXC UHS-I 90/80 Memory Card Review

Kingston U3 microSDXC 64GB Memory Card

Introduction

The Kingston U3 microSDXC memory card is rated at 90 MB/s read and 80MB/s write speed. It features UHS-I compatibility and is rated UHS Speed Class 3 to guarantee at least 30MB/s continuous write performance to support recording 4K video. The Kingston UHS-I U3 microSD card is available in capacities of 16, 32 and 64 GB and is backed by a lifetime warranty. The 64GB microSDXC version (SDCA3/64GB) is tested in this review.

Kingston U3 microSDXC 64GB Memory Card Back

Performance

The 64GB Kingston U3 microSD card surpassed its read and write speed ratings in USB 3.0 card reader benchmark tests. It reached 96.3 MB/s sequential read speed and 85.3MB/s sequential write speed in the Delkin Travel Reader.

Card: Kingston U3 (90/80) 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

Kingston U3 (90/80) 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
Lexar Professional Workflow SR2 UHS-II98.52383.34684.3820.77212.0212934.80.558136.314.3363500.00.495120.8
Lexar LRWM04U-7000 UHS-II Reader98.52383.33984.4100.77311.7402866.10.418102.114.4273522.20.601146.6
SanDisk Extreme Pro SD UHS-II Reader/Writer98.03475.67182.6740.9557.7151883.60.457111.58.3012026.60.529129.1
SanDisk Extreme Pro UHS-II SD Reader/Writer96.57284.28484.9541.04811.9812925.00.553135.114.4983539.70.513125.2
Delkin Dual Slot SD UHS-II and CF Card Reader96.55483.57284.3270.77211.7492868.50.628153.414.4533528.70.463113.0
Kingston MobileLite G4 UHS-II96.45684.33884.8840.77411.9792924.60.606147.914.5263546.40.506123.6
Delkin Travel Reader96.34185.27183.6210.92511.8062882.40.561137.014.4973539.30.598146.0
Lexar Professional Dual Slot UHS-II Card Reader96.10383.15484.2850.91311.6522844.80.533130.214.0833438.20.424103.5
Lexar C1 USB-C microSD Reader95.80474.98482.8910.8478.3782045.50.497121.48.9922195.40.599146.1
Transcend Multi-Card Reader RDF995.67383.35984.2580.77111.7322864.20.543132.514.4333523.70.492120.1
Transcend Multi-Card Reader RDF8 Black95.29983.26784.2710.77210.3442525.30.415101.312.4503039.50.441107.7
Kingston FCR-HS4 Card Reader95.23983.19484.2580.77211.5492819.60.424103.514.5043541.10.681166.2
Lexar LRWM03U-7000 UHS-I microSD Reader94.55183.26082.9460.8278.8802167.90.421102.810.8042637.80.569138.9
Transcend SD Card Reader RDF5 Black94.19583.10282.9050.8597.6381864.80.40999.87.9271935.40.451110.0
SanDisk ImageMate All-In-One USB 3.093.48983.33976.3611.0375.4511330.90.500122.05.6261373.60.422103.0
SanDisk microSD UHS-II USB 3.0 Reader93.05883.68581.0710.86510.6372596.90.535130.512.9003149.50.507123.8
Lexar LRWM05U-7000 UHS-II microSD Reader92.65583.58580.7520.91510.2032490.90.585142.912.6503088.50.577140.9
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader92.58183.67280.6200.86610.1132468.90.528129.012.6923098.50.574140.2
Delkin Universal Memory Card Reader67.29464.03561.7720.9149.9542430.20.536130.811.7712873.70.427104.2

Results from in-camera testing are shown below. Additional results will be added as more cameras are tested using this card.

Kingston U3 (90/80) microSD 64GB
Tested in Camera
Write Speed
(MB/s)
Canon 80D79.4
Canon 5D Mark IV77.7
Nikon D50075.6
Fuji X-Pro273.3
Nikon D560072.4
Olympus E-M1 II40.6
Olympus PEN-F40.0
Sony A630033.6

Cameras tested with this card: Canon 5D Mark IV, Canon 80D, Fuji X-Pro2, Nikon D500, Nikon D5600, Olympus E-M1 II, Olympus PEN-F, Sony A6300

The following table contains information encoded in the SD card.

Kingston U3 (90/80) microSD 64GB microSD — Internal Card Information
Serial number (PSN)2302111
Product Name (PNM)SD64G
Product Revision3.0
Manufacturer ID (MID)0x000041
OEM ID (OID)42
Manufacture Date (MDT)09/2015
Total capacity64,223,182,848 bytes

Available sizes and prices

Compare prices on the Kingston U3 (90/80) microSD card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
Kingston U3 (90/80) microSD16$1.35$21.56Check price
Kingston U3 (90/80) microSD32$0.59$18.99$24.61$18.95
Kingston U3 (90/80) microSD64$0.61$38.95$49.95$39.95
Kingston U3 (90/80) microSD128$0.66$87.95$84.95$99.95