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Lexar Professional 1066x microSD Card Review

by Adam Armstrong
Lexar Professional 128GB micro sdxc lifestyle

Back in October of this year, Lexar expanded its high-quality line of SD and microSD cards with the introduction of the Lexar Professional 1066x microSD Card. The new card comes with high capacity (up to 512GB), quoted high performance (up to 160MB/s), and a reasonable price (starting at just $16 USD). While the card is aimed for high-performance video capture, it is priced low enough for most use cases.

Back in October of this year, Lexar expanded its high-quality line of SD and microSD cards with the introduction of the Lexar Professional 1066x microSD Card. The new card comes with high capacity (up to 512GB), quoted high performance (up to 160MB/s), and a reasonable price (starting at just $16 USD). While the card is aimed for high-performance video capture, it is priced low enough for most use cases.

Lexar Professional 128GB micro sdxc box

As stated, the Lexar Professional 1066x microSD has quoted read speeds up to 160MB/s, and write speeds are quoted up to 120MB/s. This makes it a nice choice for those that want to capture and transfer 4K video. While a good choice for action cameras due to its performance capabilities (as well as being Class 10, UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)), the card has an A2 rating making it a good fit for those that leverage android devices and want to see their apps load faster.

microSD cards are wonderful until you drop them. The 1066x card has been rigorously tested to be highly durable. According to the company, the card is water, shock, vibration, and X-Ray proof.

The Lexar Professional 1066x microSD cards are currently available in three capacities, 64GB, 128GB, and 256GB, and can be picked up today for $16, $28, and $46 respectively. The 32GB and 512GB capacities are expected to be available soon. The card also comes with a 10-year limited warranty. For our review, we are testing the 128GB capacity.

Lexar Professional 1066x microSD Specifications

Capacity 32GB – 512GB
Speed Class 32GB – Class 10, U1, V10, A1
64GB – 512GB – Class 10, U3, V30, A2
Performance 32GB – up to 160MB/s read
64GB – up to 160MB/s read, up to 70MB/s write
128GB – 512GB – up to 160MB/s read, up to 120MB/s write
Operating Temperature 0° to 70° C (32°F to 158°F)
Storage Temperature -25° to 85° C (-13°F to 185°F)
Dimension (L x W x H) 11mm x 15mm x 1 mm / 0.43” x 0.59” x 0.04”

Design and Build

The Lexar Professional 1066x is the same general size and shape as all microSD cards. The card is black and gray in color with basic information like capacity and class.

Lexar Professional 128GB micro sdxc

Performance

For performance, we ran IOMeter on a Lenovo ThinkCentre M90n Nano. For comparables we look at two other 128GB microSD cards:

For 2MB sequential the Lexar gave us 86.1MB/s read and 75.7MB/s write. The HyperX hit 93MB/s read and 78.8MB/s write and the Samsung hit 94MB/s read and 34.3MB/s write. For 2MB random the Lexar hit 84.4MB/s read and 65.7MB/s write. Better than the HyperX that hit 72.12MB/s read and 47.85MB/s write and the Samsung that hit 73.9MB/s read and 21.1MB/s write. For random 4K, the Lexar hit 2,485 IOPS read and 562 IOPS write.

Conclusion

Lexar Professional 128GB micro sdxc trees

Lexar Professional 1066x is a microSD card that offers the best of all worlds with up to 512GB, speeds up to 160MB/s, and a price starting at just $16. The card can be used for most microSD use cases but it billed as being great for capturing and transferring 4K video as well as being a good choice for Android devices. The card comes with a 10-year limited warranty and the durability to make it there.

For performance, the card was unable to hit its quoted speeds in 2MB sequential we saw speeds of 86.1MB/s read and 75.7MB/s write. 2MB random gave us 84.4MB/s read and 65.7MB/s write. And 4K random gave us 2,485 IOPS read and 562 IOPS write. Nothing earth-shattering, but fairly good numbers.

The Lexar Professional 1066x microSD card provides good performance and comes with a great price tag. Most users will find it to work for what they need. If top performance is paramount, there are other options out there.

Lexar Professional 1066x on Amazon

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