Camera Memory Speed
Memory Card Comparison & Performance Tests for Digital Cameras

SanDisk Extreme 100MB/s UHS-I U3 V30 A1 32GB microSDHC Card Review

SanDisk Extreme 100MB/s UHS-I U3 V30 A1 32GB microSDHC Memory Card

Introduction

The SanDisk Extreme 100MB/s U3 V30 A1 32GB microSDHC card delivers high performance for capturing video footage and still photos as well as running the latest mobile applications. This UHS-I microSD card offers up to 100MB/s read speed and 60MB/s write speed. The card carries the new App Performance Class rating A1. This designation is given to cards that can sustain at least 1500 random read input-output access per second (IOPS), write IOPS of at least 500, and sustained sequential write speed of 10MB/s. In addition, the card is rated Video Speed Class 30 (V30) meaning it can sustain at least 30MB/s continuous write speed for recording HD and 4K video. SanDisk Extreme 100MB/s A1 microSD cards are offered in 32, 64, 128 and 256GB capacities. The 32, 64, and 128GB cards are rated 100MB/s read speed and 60MB/s write speed, while the 256GB card is rated 90MB/s write speed. The 32GB capacity card model SDSQXAF-032G-GN6MA with UPC 619659155827 is reviewed in this test.

SanDisk Extreme 100MB/s UHS-I U3 V30 A1 32GB microSDHC Memory Card Back

Performance

The SanDisk Extreme 100MB/s 32GB microSDHC card underwent benchmark performance testing using several memory card readers. The sequential read reached as high as 99.5 MB/s, which is in line with its 100MB/s rating. Sequential write speed measured up to 72.2 MB/s, comfortably above the 60MB/s rating. Overall the benchmark performance was similar to the previous generation Extreme U3 V30 card without the A1 on the label.

Card: SanDisk Extreme 100MB/s A1 microSDHC 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 100MB/s A1 microSDHC 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
Lexar Professional Workflow SR2 UHS-II99.48570.84592.62453.5169.2672262.53.282801.29.8222397.93.321810.8
Lexar LRWM04U-7000 UHS-II Reader99.47671.50292.62454.4989.2402255.83.283801.410.1392475.33.345816.6
Sony S1 High Speed UHS-II Reader/Writer99.29771.70787.81253.1326.1451500.22.539619.86.4551576.02.656648.4
SanDisk Extreme Pro SD UHS-II USB-C Reader99.29771.77188.40753.3586.3701555.22.499610.26.8031661.02.616638.7
SanDisk Extreme Pro SD UHS-II Reader/Writer99.25971.95888.52453.8275.9741458.42.459600.36.8171664.32.655648.1
Delkin Black Rugged Card Reader99.22271.38088.42254.5876.0581479.02.621639.96.4751580.72.739668.7
Transcend Multi-Card Reader RDF998.18172.21691.58654.6229.5232325.03.291803.510.1382475.03.348817.3
Transcend Multi-Card Reader RDF8 Black97.87971.08091.33053.8448.7832144.33.640888.69.3372279.53.794926.2
Lexar Professional Dual Slot UHS-II Card Reader97.79771.23092.53252.4379.5632334.63.909954.310.0942464.43.933960.1
Delkin Dual Slot SD UHS-II and CF Card Reader97.78871.74792.54753.7389.5032320.03.302806.210.1202470.83.381825.3
Delkin Universal Memory Card Reader97.74271.21591.25554.5878.6252105.62.953721.19.5882340.83.038741.6
Kingston FCR-HS4 Card Reader97.60671.16292.25553.6409.2812265.83.321810.710.1272472.43.386826.8
Delkin Travel Reader97.58771.75189.99253.8099.4232300.43.282801.210.1422476.13.356819.3
Delkin Multi-Card CFast SD UHS-II microSD Reader97.53371.44892.39353.8279.5592333.83.228788.210.1292472.93.290803.2
ProMaster Professional Dual Card Reader SD UHS-II97.43371.52191.70754.4989.3812290.33.256794.89.9862438.03.333813.7
Kingston MobileLite G4 UHS-II97.41571.41491.49654.4899.5472330.73.334813.910.1572479.73.388827.2
SanDisk Extreme Pro UHS-II SD Reader/Writer97.32571.55691.95055.1529.4702311.93.305806.810.1602480.63.371823.0
Lexar C1 USB-C microSD Reader97.16271.17288.77453.7026.7111638.32.620639.77.2481769.42.750671.5
Verbatim USB-C Pocket Card Reader96.63472.06789.43154.4639.0592211.62.873701.39.8282399.43.055746.0
Lexar LRWM03U-7000 UHS-I microSD Reader96.12070.78889.63753.8357.5631846.44.2801044.98.2952025.34.4111076.8
Transcend SD Card Reader RDF5 Black95.47371.84088.86254.0856.3301545.42.495609.16.5291594.12.668651.3
SanDisk ImageMate All-In-One USB 3.094.57771.79180.05750.6644.7691164.42.278556.14.8911194.02.298561.1
SanDisk microSD UHS-II USB 3.0 Reader94.06871.91486.86052.8558.8032149.32.893706.39.8002392.63.010734.9
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader93.79071.37186.71753.0278.9852193.62.859697.99.7652384.02.956721.6
Lexar LRWM05U-7000 UHS-II microSD Reader93.75771.89487.30953.1589.3702287.62.809685.89.6932366.42.968724.6

The 32GB Extreme 90MB/s U3 V30 A1 microSDHC card has been tested in digital cameras to measure average write speed during continuous shooting. The table below lists results for cameras tested. Additional results will be added as more cameras are tested using this card.

SanDisk Extreme 100MB/s A1 microSDHC 32GB
Tested in Camera
Write Speed
(MB/s)
Sony A964.2
Nikon D750063.5

Cameras tested with this card: Nikon D7500, Sony A9

The following table contains information encoded in the SD card.

SanDisk Extreme 100MB/s A1 microSDHC 32GB microSD — Internal Card Information
Serial number (PSN)3832692871
Product Name (PNM)AFGCD
Product Revision8.0
Manufacturer ID (MID)0x000003
OEM ID (OID)SD
Manufacture Date (MDT)04/2017
Total capacity31,914,983,424 bytes

Available sizes and prices

Compare prices on the SanDisk Extreme 100MB/s A1 microSD card. The lowest prices are highlighted in the table below. Prices are updated daily.

CardSize
GB
Lowest
$ / GB
Prices
AmazonB&H PhotoAdorama
SanDisk Extreme 100MB/s A1 microSD32$0.59$18.99$18.99
SanDisk Extreme 100MB/s A1 microSD64$0.51$32.90$32.90
SanDisk Extreme 100MB/s A1 microSD128$0.52$66.99