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SanDisk Extreme 90MB/s UHS-I U3 64GB SDXC Card Review

SanDisk Extreme 90MB/s UHS-I U3 64GB SDXC Card


The 64GB SanDisk Extreme 90MB/s SDXC UHS-I U3 memory card is an update to the Extreme 60MB/s card. This version was released September 2015 and features a 90MB/s read speed according to SanDisk. Extreme 90MB/s cards available in 16, 32, 64, 128 and 256 GB capacities. SanDisk advertises the 16, 32 and 64GB with a 40MB/s write speed, while the 128 and 256GB cards receive a faster 60MB/s write speed.

The Extreme 90MB/s 64GB SDXC card is rated UHS Speed Class 3 (U3) which makes it suitable for recording 4K video that requires at least 30MB/s continuous write speed. The card features a gold label that is marked with its 90MB/s read speed. A lot number is located on the back of the card and the case designates this card is made in China. SanDisk Extreme cards are backed by a lifetime warranty.

SanDisk Extreme 90MB/s UHS-I U3 64GB SDXC Card Back


The Extreme 90MB/s 64GB SD card was tested in a variety of USB 3.0 memory card readers. The maximum sequential read speed observed was 99.552 MB/s, well above the 90MB/s claim, and a healthy upgrade over the previous generation Extreme 60MB/s 64GB card that measured a best 71.3 MB/s read speed.

Write speeds were not nearly as impressive. The 64GB Extreme 90MB/s card reached 50.1 MB/s sequential write speed in the fastest card reader benchmark test. The previous generation 64GB hit 52.7 MB/s sequential write speed.

Card: SanDisk Extreme 90MB/s U3 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 90MB/s U3 64GB 64 GB
Card Reader Benchmarks
Lexar LRWM04U-7000 UHS-II Reader99.55249.51393.33041.9369.6702360.73.031740.0
Lexar Professional Workflow SR2 UHS-II99.55250.13892.96242.3639.6712361.13.064748.1
Transcend Multi-Card Reader RDF997.87949.49893.14542.0579.7642383.73.041742.5
Kingston FCR-HS4 Card Reader97.74249.64692.87042.0579.8512405.03.059746.8
SanDisk Extreme Pro UHS-II SD Reader/Writer97.69649.72193.19142.0519.8212397.63.016736.2
Kingston MobileLite G4 UHS-II97.67849.60292.91642.0719.8752411.03.022737.7
Delkin Dual Slot SD UHS-II and CF Card Reader97.65149.70793.16142.1599.7852388.93.051744.8
Delkin Travel Reader97.54249.65390.63541.6659.6862364.73.062747.5
Lexar Professional Dual Slot UHS-II Card Reader97.46049.48492.79441.3989.7442379.03.491852.3
Lexar Professional Dual Slot Reader96.69649.68691.27042.1529.8542405.83.970969.2
Transcend Multi-Card Reader RDF8 Black96.59049.59791.18142.0309.6662360.03.284801.8
Delkin Universal Memory Card Reader96.22649.67090.90742.0719.4952318.12.699659.0
Lexar Professional Workflow SR195.77849.63489.82941.9709.7862389.23.019737.1
Transcend SD Card Reader RDF5 Black95.57750.12389.72542.2067.7421890.22.389583.3
SanDisk ImageMate All-In-One USB 3.094.77449.69381.90639.8305.7581405.82.219541.7
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader93.22349.82386.91841.8969.7832388.52.678653.9
Kingston Multi-Card Reader FCR-HS391.30849.52463.61335.4719.6782362.73.160771.5

The Extreme 90MB/s 64GB SDXC card will be tested in camera tests. Results will be added below when available.

SanDisk Extreme 90MB/s U3 64GB
Tested in Camera
Write Speed
Canon 80D46.9
Canon 5D Mark IV46.2
Nikon D50045.6
Fuji X-Pro244.8
Olympus E-M1 II40.5
Fuji X-T1040.0
Olympus PEN-F38.3
Sony A7R II35.3
Sony A630033.5

Cameras tested with this card: Canon 5D Mark IV, Canon 80D, Fuji X-Pro2, Fuji X-T10, Nikon D500, Olympus E-M1 II, Olympus PEN-F, Sony A7R II, Sony A6300

The following table contains information encoded in the SD card.

SanDisk Extreme 90MB/s U3 64GB SD — Internal Card Information
Serial number (PSN)
Product Name (PNM)SE64G
Product Revision8.0
Manufacturer ID (MID)0x000003
Manufacture Date (MDT)
Total capacity0 bytes

Available sizes and prices

Compare prices on the SanDisk Extreme 90MB/s card. The lowest prices are highlighted in the table below. Prices are updated daily.

$ / GB
AmazonB&H PhotoAdorama
SanDisk Extreme 90MB/s U316$0.68$10.85$10.85
SanDisk Extreme 90MB/s microSD16$1.50$24.00Check price
SanDisk Extreme 90MB/s U3 V30 microSD16$1.50$24.00Check price
SanDisk Extreme 90MB/s U332$0.50$17.20$15.95
SanDisk Extreme 90MB/s microSD32$0.65$20.73Check price
SanDisk Extreme 90MB/s U3 V3032$0.50$15.95$15.95$16.95
SanDisk Extreme 90MB/s U3 V30 microSD32$0.59$18.99$18.99$18.95
SanDisk Extreme 90MB/s U364$0.43$27.63$27.58
SanDisk Extreme 90MB/s microSD64$0.46$29.63$29.49
SanDisk Extreme 90MB/s U3 V3064$0.45$28.89$28.89$29.95
SanDisk Extreme 90MB/s U3 V30 microSD64$0.44$29.95$27.95$27.95
SanDisk Extreme 90MB/s U3128$0.31$39.95$53.95$54.95
SanDisk Extreme 90MB/s U3 V30128$0.43$56.95$54.95$54.95
SanDisk Extreme 90MB/s U3 V30 microSD128$0.49$62.99$62.36$62.95
SanDisk Extreme 90MB/s U3256$0.43$118.75$109.70$119.95
SanDisk Extreme 90MB/s U3 V30256$0.46$118.95$116.95$119.95