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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 302.1 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
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
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.

Cameras tested with this card:

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$67.09$59.95$59.95
SanDisk Extreme Pro 300MB/s UHS-II64$1.87$119.95$119.95$119.95
SanDisk Extreme Pro 300MB/s UHS-II128$1.95$263.44$249.99$249.99