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SanDisk Extreme Pro 95MB/s 64GB microSDXC UHS-I U3 Memory Card Review

SanDisk Extreme Pro 95MB/s UHS-I U3 64GB microSDXC Card


The Extreme Pro 95MB/s UHS-I U3 card may be small, but SanDisk managed to squeeze 64GB capacity into this tiny microSD card. IF that wasn't enough, the card maximizes the potential of UHS-I with a 95MB/s read and 90MB/s write speed. The 64GB size provides enough space for hours of video or thousands of photographs, and the microSD format is compatible with a wide array of action cameras, smartphones and tablets and can be used with the included adapter in standard SD slots found in digital cameras and laptops. The card is also available in 8, 16 and 32 GB capacities. The 64GB microSDXC version is reviewed here.

SanDisk Extreme Pro 95MB/s UHS-I U3 64GB microSDXC card back


To test the maximum read and write speeds the Extreme Pro 64GB microSDXC was benchmarked in several USB 3.0 card readers. It was tested in the microSD slot if a given reader had one, or in the included SD adapter if the card reader lacked the microSD slot. Testing in readers with both slots showed that the performance essentially the same; the adapter is a passive device and does not affect performance.

The 64GB Extreme Pro 95MB/s microSDXC card performed similarly to full size SD Extreme Pro SDXC card. The microSDXC card measured 99.6 MB/s sequential read and 92.4 MB/s sequential write, comfortably above the quoted speeds and about as close to the theoretical 104MB/s maximum provided by UHS-I protocol.

Card: SanDisk Extreme Pro 95MB/s microSDXC 64GB 64 GB
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 95MB/s microSDXC 64GB 64 GB
Card Reader Benchmarks
Lexar Professional Workflow SR2 UHS-II99.55291.41992.42476.5779.0122200.13.010734.9
Lexar LRWM04U-7000 UHS-II Reader99.55291.25292.56376.4508.9972196.53.004733.5
Delkin Dual Slot SD UHS-II and CF Card Reader97.76091.55591.72232.3488.2442012.62.993730.6
Lexar Professional Dual Slot UHS-II Card Reader97.70691.45192.37879.1778.9782191.83.379824.9
Kingston MobileLite G4 UHS-II97.60691.41192.17976.5779.0042198.33.007734.1
Transcend Multi-Card Reader RDF997.58791.42793.19132.5389.3472281.92.993730.6
SanDisk Extreme Pro UHS-II SD Reader/Writer97.57891.47592.30176.5008.9972196.53.002732.9
Kingston FCR-HS4 Card Reader97.52491.45992.40976.4759.0282204.12.999732.1
Delkin Travel Reader97.42491.37189.78474.9738.8692165.43.018736.8
Transcend Multi-Card Reader RDF8 Black96.48392.29680.97874.7379.3442281.23.672896.5
Lexar Professional Dual Slot Reader96.43992.41890.18582.2689.2322253.93.791925.6
Delkin Universal Memory Card Reader96.29792.23989.47577.0137.8961927.72.717663.3
Lexar Professional Workflow SR195.78791.12589.65176.1349.0032197.93.002733.0
Lexar LRWM03U-7000 UHS-I microSD Reader95.51690.63789.41632.1758.7242129.83.817931.9
Transcend SD Card Reader RDF5 Black95.35190.64589.05575.8467.4221811.92.389583.3
SanDisk ImageMate All-In-One USB 3.094.59489.66080.40467.3715.3741311.92.148524.5
SanDisk microSD UHS-II USB 3.0 Reader93.68187.68186.86032.3009.0272203.82.760673.8
Lexar LRWM05U-7000 UHS-II microSD Reader93.47387.85786.80374.3679.1842242.22.727665.8
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader93.39887.70386.57332.2859.2942268.92.767675.7
Kingston Multi-Card Reader FCR-HS391.74782.41662.97253.1926.8491672.22.986729.0

When the 64GB Extreme Pro microSD card was tested in digital cameras, it provided outstanding performance. The Canon EOS Rebel T6s measured 71.9 MB/s write speed shooting a 30 second burst of RAW images. Additional tests in cameras will be added to the table below.

SanDisk Extreme Pro 95MB/s microSDXC 64GB
Tested in Camera
Write Speed
Nikon D50083.8
Canon 80D81.1
Fuji X-Pro277.8
Canon Rebel T6i/T6s73.3
Canon 5Ds71.7
Fuji X-T1058.6
Olympus PEN-F41.1
Pentax K-3 II37.1
Sony A7R II36.1
Sony A630034.0

Cameras tested with this card: Canon 5Ds, Canon 80D, Canon Rebel T6i/T6s, Fuji X-Pro2, Fuji X-T10, Nikon D500, Olympus PEN-F, Pentax K-3 II, Sony A7R II, Sony A6300

SD vs microSD

The microSD card size offers a wide range of compatibility including tablets, smartphones and action cameras. Digital cameras and laptops often use full-size SD cards, but microSD cards can be used in the included adapter without affecting performance.

The following table contains information encoded in the SD card.

SanDisk Extreme Pro 95MB/s microSDXC 64GB microSD — Internal Card Information
Serial number (PSN)9135033
Product Name (PNM)SP64G
Product Revision8.0
Manufacturer ID (MID)0x000003
Manufacture Date (MDT)03/2015
Total capacity63,864,569,856 bytes

Available sizes and prices

Compare prices on the SanDisk Extreme Pro 95MB/s microSD card. The lowest prices are highlighted in the table below. Prices are updated daily.

$ / GB
AmazonB&H PhotoAdorama
SanDisk Extreme Pro 95MB/s microSD8$1.43$11.44
SanDisk Extreme Pro 95MB/s microSD16$1.32$21.15
SanDisk Extreme Pro 95MB/s microSD32$1.03$33.25Check price$32.95
SanDisk Extreme Pro 95MB/s microSD64$0.83$52.99Check price$54.95