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SanDisk Extreme Pro 300MB/s UHS-II 32GB SDHC Memory Card Review

SanDisk Extreme Pro UHS-II 300MB/s 32GB SDHC Card

Introduction

The SanDisk Extreme Pro 300MB/s UHS-II 32GB SDHC card brings up to 300MB/s read speed and 260MB/s write speed for the fastest SD card performace offered to date from SanDisk. The card takes advantage of the UHS-II interface to reach these speeds. In older SD devices the card will revert to UHS-I mode and its speed will be reduced. The Extreme Pro 300MB/s UHS-II cards are available in 32, 64 and 128GB capacities. The 32GB SDHC card, model SDSDXPK-032G-ANCIN and UPC 619659151140, is covered in this review.

SanDisk Extreme Pro 300MB/s UHS-II 32GB SDHC Card Back

UHS-II cards can be identified by the second row of contacts on the bottom side. These provide the high speed interface. The first row are the traditional SD contacts and allow legacy supoort and offer up to UHS-I speed. In devices without the UHS-II pins the card will act like a UHS-I card.

The new Extreme Pro 300MB/sUHS-II card is an update to the original Extreme Pro 280MB/s UHS-II cards. The old 280MB/s card had one major down side: when used in UHS-I mode they were limited to 50MB/s bus speed because they did not support SDR104 in UHS-I mode. The new 300MB/s cards now support SDR104 which enables up to 104MB/s bus speed in UHS-I mode.

Not every camera can take advantage of the UHS-II speed offered by this card. Only certain high-end cameras can operate in UHS-II mode. An updated list of UHS-II capable cameras shown cameras currently available with UHS-II support. Even if a camera does not support UHS-II, the card can still be used, but it will operate at UHS-I speed like other UHS-I cards. The reason one might still consider a UHS-II card for a non-UHS-II camera would be the fast read speed when used in a UHS-II card reader where the cards can provide up to 300MB/s transfer rate.

Performance

The Extreme Pro 300MB/s UHS-II 32GB SDHC was tested in various card readers with UHS-I and UHS-II support. The maximum sequential read speed measured 306.8 MB/s, while write speed reached 250.4 MB/s. The read speed is above the 300 MB/s rating, but the write speed is about 10MB/s short of the 260 MB/s write speed claimed by SanDisk. The 32GB 300MB/s card is faster than the previous 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 96.8 MB/s read speed and 88.0 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 32GB
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 32GB
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 Reader306.781248.331214.6362.72411.7382865.72.056502.012.9963172.81.896462.9
SanDisk Extreme Pro SD UHS-II Reader/Writer302.314246.318215.4492.70712.7353109.12.135521.214.5363548.81.852452.2
SanDisk Extreme Pro SD UHS-II USB-C Reader283.898250.376207.6912.74113.1983222.22.294560.114.6563578.11.940473.6
Lexar LRWM04U-7000 UHS-II Reader277.511222.912208.0722.64914.1073444.02.055501.715.2653726.71.891461.6
Lexar Professional Workflow SR2 UHS-II276.596222.699206.9672.59013.8723386.72.215540.915.1173690.71.938473.3
Sony S1 High Speed UHS-II Reader/Writer271.406224.510199.9112.64212.2332986.72.201537.314.1153446.02.079507.7
Transcend Multi-Card Reader RDF9251.306206.983187.3702.71715.6303815.82.343572.017.2554212.51.812442.3
Lexar Professional Dual Slot UHS-II Card Reader246.927209.109183.6262.71415.2033711.72.295560.316.6234058.41.903464.5
Kingston MobileLite G4 UHS-II245.453202.428185.4202.66216.0483918.02.330568.817.0414160.32.173530.6
SanDisk Extreme Pro UHS-II SD Reader/Writer245.424203.844188.0232.78015.3193740.12.107514.516.8974125.32.101513.0
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader245.138202.800189.9222.72014.0253424.02.361576.415.2463722.11.898463.3
ProMaster Professional Dual Card Reader SD UHS-II243.092210.706197.5182.62316.5864049.32.233545.217.6634312.31.886460.3
Kingston FCR-HS4 Card Reader240.803206.433193.2142.64015.6793827.92.262552.217.0004150.31.799439.1
Delkin Dual Slot SD UHS-II and CF Card Reader239.921206.922193.4062.58915.4013760.02.254550.317.4974271.82.037497.3
Delkin Multi-Card CFast SD UHS-II microSD Reader219.873206.392181.0892.62115.1473698.02.271554.417.0354158.92.042498.6
Delkin Universal Memory Card Reader96.79587.95387.6531.7179.7132371.41.972481.510.7992636.51.383337.8
Delkin Travel Reader96.70587.34586.1471.8339.7622383.32.173530.510.9462672.41.952476.6
Transcend Multi-Card Reader RDF8 Black96.41286.89687.0331.7779.4792314.21.846450.810.7782631.31.432349.7
Transcend SD Card Reader RDF5 Black94.92886.84685.2221.8046.9111687.31.699414.77.1181737.91.193291.2
SanDisk ImageMate All-In-One USB 3.094.27185.06377.9931.7775.3031294.61.617394.85.3741312.11.221298.0

The 32GB SDHC Extreme Pro 300MB/s UHS-II card was tested in cameras. Its average write speed during continuous shooting was measured. Results are shown in the table below. Additional camera write speed results are added when available.

SanDisk Extreme Pro 300MB/s UHS-II 32GB
Tested in Camera
Write Speed
(MB/s)
Sony A9145.6
Canon Rebel T7i80.3
Nikon D750080.2
Canon 77D80.1
Panasonic GH577.4

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.

SanDisk Extreme Pro 300MB/s UHS-II 32GB SD — Internal Card Information
Serial number (PSN)3658651451
Product Name (PNM)SP2BM
Product Revision3.0
Manufacturer ID (MID)0x000003
OEM ID (OID)PT
Manufacture Date (MDT)09/2016
Total capacity32,094,814,208 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$70.00$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$276.63$249.99$249.99