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

Introduction

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.

Performance

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
Benchmark: CrystalDiskMark 3.0.3 x64
Program settings: 1000 MB, 5 passes, random test data
Operating system: Windows 10 Pro
Motherboard: Gigabyte GA-Z77X-UD3H
Processor: Intel Core i7-3770K @ 4.40GHz
RAM: 32GB DDR3 1600

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.

Cameras tested with this card: Canon EOS R, Canon 5D Mark IV, Canon 5Ds, Canon 77D, Canon 80D, Canon EOS M5, Canon Rebel T6i/T6s, Canon Rebel T7i, Fuji X-T3, Fuji X-Pro2, Fuji X-T10, Nikon D500, Nikon D7500, Nikon D5600, Nikon Coolpix P1000, Olympus E-M1 II, Olympus PEN-F, Panasonic GH5, Pentax K-3 II, Sony A7R II, Sony A9, 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.

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.