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Kingston Workflow SD Reader

Kingston Workflow SD Reader


Kingston Workflow SD Card reader. With dual SD card slots and supprting UHS-I and UHS-II cards. It will operate as a standalone reader, or plug into the Kingston Workflow Station Dock.

Kingston Workflow SD Reader card slots

The reader supports USB 3.2 Gen 1 up to 5Gbps and connects via a USB Type-C connector (USB-C). Kingston provides a 2 year warranty. The reader tested is model WFS-SDC with UPC 740617307740. The reader is made in Taiwan.

Kingston Workflow SD Reader back USB connector

The entire body of the card reader is made of plastic. Two blue card access lights are on the front of the reader, one next to each slot.

Kingston Workflow SD Reader with USB cable

The card reader measures 2.5 x 2.0 x 0.7 inches (63 x 50 x 17mm) not including the USB cable . The reader includes a USB-C to USB-C cable.

Kingston Workflow SD Reader inside Kingston Workflow SD Reader inside bottom

Inside the reader the Genesys Logic GL3231S controller handles the USB to Secure Digital (SD) interface. It allows dual SD card connections and supports UHS-I and UHS-II cards as well as DDR200 speed mode UHS-I. Also seen is the Etron EJ179W USB Type-C switch integrated circuit which handles the reversible USB-C plug.


The Kingston Workflow SD Reader was tested using UHS-II and UHS-I SD cards. Testing a single card at a time, the highest read speed was 304MB/s while the highest write speed was 286MB/s. The SDR200 mode UHS-I allowed several UHS-I cards to reach above 100MB/s, with various SanDisk cards reaching above 180MB/s read and 140MB/s write, and Kingston cards also worked with SDR200 to reach higher speeds. Samsung, Lexar and Acer cards did not seem to take advantage of SDR200 in this reader.

Unfortunately, using cards in both slots at the same time significantly reduced performance. Reading fast UHS-II cards cards simultaneously dropped the speed to around 90-96MB/s for each card when transferring large (32GB) files. Copying from one card to another averaged 74MB/s.

Reader: Kingston Workflow SD Reader
Benchmark: CrystalDiskMark 8.0.4 x64
Program settings: 1000 MB, 5 passes, random test data
Operating system: Windows 11 Pro
Motherboard: Gigabyte Z690 UD AX DDR4
Processor: Intel Core i5 @ 3.30GHz
RAM: 32GB DDR4 3200

Kingston Workflow SD Reader
Card Benchmarks
1M Q=8
1M Q=1
1M Q=8
1M Q=1
Kingston Canvas React Plus 64GB303.977295.657286.017275.426
Transcend 700S UHS-II V90 64GB280.005269.749195.601191.650
Angelbird AV Pro V90 64GB279.061276.450241.267240.545
AData Premier One UHS-II V90 256GB279.021269.643231.524226.394
ProGrade 250MB/s UHS-II V90 64GB278.220271.219240.225242.042
Lexar Professional 2000x UHS-II Rev E 64GB278.137269.731249.742246.870
Lexar Professional 2000x UHS-II Rev E 32GB277.667268.948253.614249.887
SanDisk Extreme Pro 300MB/s UHS-II 128GB277.335265.748216.215214.451
Adata Premier One UHS-II V90 64GB277.081271.367241.638238.228
SanDisk Extreme Pro 300MB/s UHS-II 32GB276.523269.968220.975229.990
Acer SC900 UHS-II 256GB276.476267.100258.431254.234
Delkin Power UHS-II V90 128GB275.933270.266216.023214.326
Integral UltimaPro X2 260MB/s UHS-II V60 128GB275.741265.818100.279100.980
Sabrent Rocket V90 UHS-II 64GB275.660272.443254.524254.970
SanDisk Extreme Pro 300MB/s UHS-II 64GB275.612269.679216.019214.482
Kodak V90 UHS-II 64GB275.395267.006258.765252.210
Lexar Professional 1667x UHS-II 256GB275.190270.284122.686124.439
Lexar Professional 2000x UHS-II Rev B 128GB274.952267.740215.883214.429
Hoodman Steel UHS-II 64GB274.552269.299163.613182.674
PNY Technologies X-PRO 90 UHS-II 64GB274.400265.265261.485248.402
Verbatim Pro II Plus UHS-II V90 64GB272.737265.725233.747240.332
Integral UltimaPro X2 UHS-II V90 64GB272.724266.842233.426240.934
Delkin Power 2000x UHS-II V90 64GB271.982267.225216.079214.506
Wise Advanced SD-N UHS-II 128GB269.800262.783254.759248.789
Sony Tough UHS-II 64GB269.430264.445208.145243.936
Delkin Prime UHS-II V60 64GB267.510256.34282.81391.626
TeamGroup Xtreem UHS-II U3 V60 256GB267.391261.310171.541173.586
Sony SF-G 300MB/s UHS-II 64GB262.984256.352249.135240.316
Sony SF-G 300MB/s UHS-II 32GB259.904252.387247.407240.234
Sony SF-G 300MB/s UHS-II 128GB259.147256.588248.888241.259
Kioxia Exceria Pro UHS-II V90 64GB258.013249.795228.402227.842
SanDisk Extreme Pro 170MB/s 1TB183.091179.717104.003105.015
SanDisk Extreme 180MB/s 256GB182.938179.815129.923131.792
SanDisk Extreme Pro 200MB/s 256GB182.872180.023142.892143.996
SanDisk Extreme Pro 170MB/s 128GB182.648179.45197.88498.388
SanDisk Extreme Pro 170MB/s 256GB182.631180.27598.37599.786
SanDisk Extreme Pro 170MB/s 64GB182.591179.53798.73999.897
SanDisk Extreme Pro 170MB/s 512GB182.449180.866141.695144.560
Integral Ultima Pro 180MB/s 256GB175.487175.159155.997156.976
ProGrade 200MB/s UHS-II V60 64GB164.917164.331101.517102.942
Angelbird AV Pro V60 64GB163.974163.107100.205103.433
Kingston Canvas Go! Plus 64GB156.678156.500117.247118.753
SanDisk Extreme 150MB/s 64GB152.876152.57266.44366.961
SanDisk Extreme 150MB 256GB151.187150.71376.95877.775
SanDisk Extreme 150MB/s 128GB151.068151.53978.51677.250
SanDisk Extreme Plus 150MB/s 64GB150.500150.70562.85064.317
SanDisk Extreme Plus 150MB/s 128GB150.487150.59577.17178.006
Samsung Pro Plus 160/120 256GB98.80998.55486.27787.031
Lexar Professional 1666x UHS-I 256GB98.77398.58286.48586.363
Samsung Pro Plus 160/120 128GB98.66197.65886.08185.956
Acer SC300 UHS-I 256GB98.54298.31986.35886.401
V7 UHS-I V30 A1 64GB98.10098.06367.81468.890
Samsung EVO Plus UHS-I 256GB97.26697.50885.00685.377
Verbatim Pro Plus V30 64GB96.74297.26765.71867.502
Transcend 500S 64GB Card 296.02295.84468.27054.841
Transcend 500S V30 128GB94.74494.16267.18953.998
Transcend 500S V30 64GB94.72694.54967.01267.136
Kingston Canvas Select Plus 64GB94.63993.08978.74679.394


Kingston Workflow SD Reader package Kingston Workflow SD Reader package back

Compare prices on the Kingston Workflow SD Reader reader. The lowest prices are highlighted in the table below.

Card ReaderConnectionModel NumberPrices
AmazonB&H PhotoAdorama
Kingston Workflow SD ReaderUSB 3.2 Gen 1WFS-SD$23.89$28.99$51.00