Camera Memory Speed
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Lexar Professional 1000x UHS-II 32GB SD Memory Card Review

Lexar Professional 1000x UHS-II 32GB U3 SDHC Memory Card Front


The Lexar Professional 1000x SD card is a new UHS-II card released in early 2015. UHS-II cards offer a new level of performance through a new bus interface. Lexar claims the Lexar 1000x card offers a read speed of 150MB/s and write speed "lower." The 32GB version tested here lists a write speed of 75MB/s on the package. Some of the cameras that are capable of UHS-II include the Fujifilm X-T1, Samsung NX1 and Olympus OM-D E-M5 II. If your camera isn't on the short list, UHS-II cards such as this Lexar will still work, but will operate but at lower UHS-I speeds. Lexar 1000x UHS-II cards are available in a variety of sizes: 16, 32, 64, 128 and 256 GB capacities.

Lexar Professional 1000x UHS-II 32GB SDHC U3 Memory Card Back

The back of the card reveals the new UHS-II interface. It consists of a new row of contacts set behind the normal SD connections. This assures the card is backwards compatible with all SD card devices. UHS-II devices will have a corresponding set of pins to interface this second row of contacts. In devices lacking these the pins, the card will behave as a UHS-I card at UHS-I speed. This card supports up to SDR104 in UHS-I mode (104MB/s maximum bus speed).


To measure the speed potential of the Lexar 1000x UHS-II card, it was benchmarked in multiple card readers. It exceeded the 150MB/s rated read speed in all UHS-II readers. It also posted some respectable write speeds, surpassings its claimed 75MB/s write speed in all readers. However its write speeds are not as fast as the fastest UHS-I cards. Note the lower read and write speeds when tested in UHS-I card readers where it operates in UHS-I mode.

Card: Lexar Professional 1000x UHS-II 32GB 32 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

Lexar Professional 1000x UHS-II 32GB 32 GB
Card Reader Benchmarks
Sony MRW-E90 XQD 2.0 / SD UHS-II Card Reader154.27083.752138.4260.52811.8092883.11.241303.0
Lexar Professional Dual Slot UHS-II Card Reader154.08988.027140.9700.75011.8152884.61.257307.0
SanDisk Extreme Pro UHS-II SD Reader/Writer154.04487.924143.2340.58514.2213471.91.294316.0
Lexar LRWM04U-7000 UHS-II Reader154.02186.530139.4150.55413.4743289.71.025250.3
Kingston MobileLite G4 UHS-II154.02188.071142.9240.63814.5273546.71.291315.1
Lexar Professional Workflow SR2 UHS-II153.93187.229137.9480.64813.1423208.51.284313.5
Transcend Multi-Card Reader RDF9153.86387.033140.5040.58513.0333182.01.231300.7
Kingston FCR-HS4 Card Reader153.77388.160141.4900.68913.2033223.41.266309.1
Delkin Dual Slot SD UHS-II and CF Card Reader153.70587.549142.3330.63412.3473014.31.283313.2
Lexar Professional Dual Slot Reader93.55677.54090.7250.52810.4352547.71.180288.1
Transcend Multi-Card Reader RDF8 Black93.48977.18690.3350.52511.1742728.01.142278.7
Lexar Professional Workflow SR193.44877.32389.2550.52610.4252545.21.192291.1
Delkin Travel Reader93.19077.35187.0770.52811.0602700.21.179287.8
Transcend SD Card Reader RDF5 Black93.16577.21589.0100.5287.6171859.51.065259.9
Delkin Universal Memory Card Reader92.84477.48389.5040.49310.5772582.41.105269.8
SanDisk ImageMate All-In-One USB 3.091.18876.49979.6740.5665.6971390.81.011246.7
Kingston Multi-Card Reader FCR-HS388.87075.14563.0130.56912.8203130.01.088265.7

The Lexar 1000x will be included in upcoming digital camera tests. As of this writing it has been tested in UHS-I and UHS-II compatible cameras. In UHS-I cameras it was faster than the Lexar 600x UHS-I card, but slightly slower than some high-speed UHS-I cards. In one UHS-II capable camera, the Olympus E-M5 Mark II, it performed better than all UHS-I cards but just below the highest speed UHS-II cards. It should be noted that the E-M5 II does not support the fastest UHS-I mode SDR104, but does support the high-speed UHS-II bus, making this card ideal for that particular camera.

Lexar Professional 1000x UHS-II 32GB
Tested in Camera
Write Speed
Olympus E-M1 II76.0
Olympus PEN-F73.2
Nikon D50072.7
Olympus E-M5 II71.9
Fuji X-Pro270.3
Canon 80D68.9
Canon 5D Mark IV67.7
Canon Rebel T6i/T6s66.1
Canon 5Ds62.5
Nikon D710059.8
Nikon D550058.8
Nikon D720054.9
Fuji X-T1050.3
Sony A7R II35.5
Pentax K-3 II34.5
Sony A630033.8

Cameras tested with this card: Canon 5D Mark IV, Canon 5Ds, Canon 80D, Canon Rebel T6i/T6s, Fuji X-Pro2, Fuji X-T10, Nikon D500, Nikon D7100, Nikon D5500, Nikon D7200, Olympus E-M1 II, Olympus E-M5 II, Olympus PEN-F, Pentax K-3 II, Sony A7R II, Sony A6300

Lexar Professional series memory cards are backed by a limited lifetime warranty. This card was made in Korea.

The following table contains information encoded in the SD card.

Lexar Professional 1000x UHS-II 32GB SD — Internal Card Information
Serial number (PSN)3771533392
Product Name (PNM)
Product Revision1.0
Manufacturer ID (MID)0x000028
Manufacture Date (MDT)1/2015
Total capacity30,852,251,648 bytes


The Lexar 1000x UHS-II card is in a unique position. It offers a taste of UHS-II speed but doesn't exploit the full write speed potential. It is priced competitively to UHS-I cards while offering a much higher read speed. For some cameras such as the Olympus E-M5 II, it offers superior performance to UHS-I cards. It delivers high performance for shooting, outstanding download speed and tremendous value.

Available sizes and prices

Compare prices on the Lexar Professional 1000x card. The lowest prices are highlighted in the table below. Prices are updated daily.

$ / GB
AmazonB&H PhotoAdorama
Lexar Professional 1000x SD UHS-II16$0.98$15.69$15.69$15.75
Lexar Professional 1000x SD UHS-II32$0.62$19.95$22.46$21.95
Lexar Professional 1000x microSD32$0.59$18.95$24.95$18.95
Lexar Professional 1000x SD UHS-II64$0.55$34.95$36.95$39.95
Lexar Professional 1000x microSD64$0.55$34.95$44.95$34.95
Lexar Professional 1000x SD UHS-II128$0.47$59.99$67.95$74.95
Lexar Professional 1000x microSD128$0.62$79.95$89.95$79.95
Lexar Professional 1000x SD UHS-II256$0.51$129.95$129.95$129.95