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SanDisk Extreme Pro 300MB/s UHS-II 64GB SDXC Memory Card Review

SanDisk Extreme Pro UHS-II 300MB/s 64GB SDXC Card

Introduction

The SanDisk Extreme Pro 300MB/s UHS-II 64GB SDXC card delivers maximum performance to improve shooting and workflow. The card is rated at 300MB/s read speed and 260MB/s write speed according to SanDisk. To reach these speeds the card uses the UHS-II interface. The card is backwards compatible and will operate in standard SD and UHS-I devices, however its speed will be reduced in these applications. The Extreme Pro 300MB/s UHS-II cards are available in 32, 64 and 128GB capacities. The 64GB SDXC card, model SDSDXPK-064G-ANCIN and UPC 619659141147, is tested in this review.

SanDisk Extreme Pro 300MB/s UHS-II 64GB SDXC Card Back

UHS-II cards incorporate a second row of contacts to provide a new 4-lane bus interface. The eight additional contacts are located next to the traditional SD contacts so the cards will work in older devices without UHS-II capabilities.

The Previous generation SanDisk Extreme Pro 280MB/s UHS-II cards had a major shortcoming when used in non-UHS-II devices. They were limited to 50MB/s bus speed in UHS-I mode. The new 300MB/s cards now support SDR104 UHS-I mode which enables up to 104MB/s bus speed.

There are only a limited number of cameras that can take advantage of UHS-II cards. These include high-end Fuji, Olympus and the Nikon D500 and an updated list of UHS-II capable cameras is available. Regardless of the camera, a major benefit of UHS-II cards is the fast read speed and when used in a UHS-II card reader. When connected through a USB 3.0 or 3.1 connection theses cards can provide nearly 300MB/s read speed.

Performance

The Extreme Pro 300MB/s UHS-II 64GB card was tested in several UHS-I and UHS-II card readers. Its maximum sequential read speed measured up to 307 MB/s, while write speed reached 247.7 MB/s. This is just above to the stated read speed but slightly below the 260 MB/s write speed claim. There is some improvement over the 279.3 MB/s read and 230.9 MB/s write speeds measured using the older Extreme Pro 280MB/s 32GB card. The old card was rated at 280MB/s read and 250MB/s write speed.

In card readers that do not support UHS-II the card reverts to UHS-I mode. In this mode the card reached 96.6 MB/s read speed and 88.4 MB/s write speed. This is much better than the previous-generation SanDisk Extreme Pro 280MB/s card which maxed out at 48.2 MB/s read and 46.1 MB/s write speed. The updated 300MB/s card supports SDR104 bus mode to reach higher speeds in UHS-I mode.

Card: SanDisk Extreme Pro 300MB/s 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

SanDisk Extreme Pro 300MB/s 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 Reader306.960243.430209.7152.65611.6002832.12.395584.812.7373109.52.248548.9
SanDisk Extreme Pro SD UHS-II Reader/Writer302.140247.685216.2372.85413.6263326.72.558624.614.7123591.82.160527.4
SanDisk Extreme Pro SD UHS-II USB-C Reader299.550246.695214.7082.74913.1573212.22.490607.914.0553431.42.030495.5
SanDisk ImageMate Pro Multi-Card Reader/Writer297.300239.894212.3962.7019.6122346.72.192535.112.0702946.71.993486.5
SanDisk Extreme Pro UHS-II USB-C Reader SDDR-409293.472242.445209.4712.83612.2832998.82.316565.514.5373549.12.176531.2
Sony S1 High Speed UHS-II Reader/Writer272.110225.065199.8112.76412.8373134.12.505611.514.2493478.72.224543.1
Lexar LRWM04U-7000 UHS-II Reader268.315216.962202.5902.91812.7823120.52.278556.214.7623604.02.010490.7
Lexar Professional Workflow SR2 UHS-II267.119217.209201.8502.75512.9553162.82.151525.214.7683605.42.037497.2
Delkin Dual Slot SD UHS-II and CF Card Reader243.430202.526182.1052.70613.2953245.82.425592.115.6613823.41.715418.8
Lexar Professional Dual Slot UHS-II Card Reader243.035204.261181.6842.63613.1073200.02.228544.015.8093859.62.021493.3
Delkin Multi-Card CFast SD UHS-II microSD Reader242.923203.212178.0212.68712.9463160.72.399585.615.6433819.22.209539.3
Transcend Multi-Card Reader RDF9242.529202.526183.2562.69313.2703239.82.378580.515.7253839.12.143523.1
Kingston FCR-HS4 Card Reader241.385201.707181.3302.76712.9123152.32.423591.515.5483796.02.149524.6
Kingston MobileLite G4 UHS-II239.510202.213179.5572.66713.1093200.52.258551.215.6043809.61.849451.4
SanDisk Extreme Pro UHS-II SD Reader/Writer237.422199.122179.2882.84213.5193300.62.282557.215.5723801.72.032496.1
Delkin Travel Reader96.56387.76286.3171.7729.7152371.92.257550.911.0182689.81.745426.1
Transcend Multi-Card Reader RDF8 Black95.80488.36888.0001.9529.0422207.42.011491.010.5892585.11.466357.9
Delkin Universal Memory Card Reader95.76088.24288.0291.8558.8152152.11.973481.710.6612602.91.641400.8
Transcend SD Card Reader RDF5 Black94.84286.63886.2601.9716.9001684.51.834447.87.1291740.51.472359.5
SanDisk ImageMate All-In-One USB 3.093.87486.09778.4341.8275.3221299.31.587387.45.3891315.61.414345.3
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader92.93483.98784.1201.8769.0392206.72.059502.710.9432671.61.714418.4

In camera write speed tests will be conducted and the results will be added to a table below.

SanDisk Extreme Pro 300MB/s UHS-II 64GB
Tested in Camera
Write Speed
(MB/s)
Canon EOS R177.8
Sony A9147.8
Panasonic GH586.7
Canon Rebel T7i80.5
Canon 77D80.3
Nikon D750079.4
Canon EOS M577.9

Cameras tested with this card: Canon EOS R, Canon 77D, Canon EOS M5, Canon Rebel T7i, Nikon D7500, Panasonic GH5, Sony A9

The following table contains information encoded in the SD card.

SanDisk Extreme Pro 300MB/s UHS-II 64GB SD — Internal Card Information
Serial number (PSN)3658527134
Product Name (PNM)SP2BN
Product Revision3.0
Manufacturer ID (MID)0x000003
OEM ID (OID)PT
Manufacture Date (MDT)11/2016
Total capacity64,172,851,200 bytes

Available sizes and prices

Compare prices on the SanDisk Extreme Pro 300MB/s card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
SanDisk Extreme Pro 300MB/s UHS-II32$1.87$59.71$59.95$59.95
SanDisk Extreme Pro 300MB/s UHS-II64$1.72$109.95$117.95$109.95
SanDisk Extreme Pro 300MB/s UHS-II128$1.89$242.37$242.37$242.37