Lexar Professional 1667x SD Card 128GB, SDXC UHS-II Memory Card, Up to 250MB/s Read, 120MB/s Write, Class 10, U3, V60 SD for Professional Photographer, Videographer, Enthusiast (LSD128CB1667)

Product Information

Lexar SD cards are perhaps the most popular for mirrorless cameras as well as DSLR and medium format systems. Actual transfer speeds under our testing churned out a write speed of 33MB/s and read speed of 82MB/s; not too bad, but the write speed is close to the minimum V30 classification on the label, so that's worth bearing that in mind if write speeds are important to your work. The next option is 1667x which are available in 64GB to 256GB and provide speeds of 250MB/s read, 120MB/s write. These will capture 4K video without breaking a sweat and provide high capacity. There are three main types of SD card: SD, SDHC (high capacity) or SDXC (extended capacity). SD cards typically offer 128MB to 2GB in storage capacity, too small for today’s modern cameras with higher resolutions. SDHC bumps this up from 4GB to 32GB, useful for most photographers and videographers. SDXC cards, meanwhile, range from 64GB to 2TB and are aimed at professional-level users who require more memory.

When it comes to compatibility, these cards have worked flawlessly with both my Sony A7R IV and Panasonic G9 cameras. I haven't experienced any compatibility issues or error messages, which is a relief. It's nice to have a memory card that plays well with different camera brands.Compatible device required. Full-HD and/or 4K video support may vary based on host device, file attributes, usage conditions and other factors. 4K video recording applies to 64GB and above only. Models in this range include 2000x with up to 300MB/s read, 260MB/s write and capacities of between 32GB and 128GB.

Temperature-proof: Withstands operating temperature range from -13ºF (-25ºC) or 185ºF (85 ºC) and non-operating temperatures from -40ºF (-40ºC) or 185ºF (85 ºC). Vibration proof: Vibration resistant (10Hz to 2000 Hz, 6Grms, 5 minutes per 1 cycle, 10 cycle per 1 axis total 30 cycles per 3 axis, based on IEC 60512-6-4 guidelines). Up to 100MB/s read transfer, write speeds lower. Speeds based on internal testing. Actual performance may vary. In terms of speed, these cards are reasonably fast. While they might not be the absolute fastest on the market, they do the job well for most situations. I've been able to shoot bursts of high-resolution photos without any noticeable lag, and recording 4K videos has been smooth as well. I have been using a 128GB Lexar Professional 2000x SDXC UHS-II card heavily for several months and it has performed perfectly in numerous cameras. In the 45.7MP Nikon Z 7II, I was able to shoot up to around 104 Fine quality Jpegs, 91 Fine* quality Jpegs or 39 uncompressed 14-bit raw files at 10fps, each in one continuous sequence. The card also enables long clips of 4K and 8K video to be recorded, however, as you’d expect, the most processor-intensive 8K options such as raw and ALL-I recording are not possible.Another key factor for photographers is the length of time that it takes images to transfer from a memory card to a computer. When the Lexar card was inserted into the UHS-II SD card port of a ProGrade card reader, it took just under 1 minute 40 seconds to transfer 9.7GB of images (100 Fine* Jpegs and 100 14-bit uncompressed raw files) from the Nikon Z 7II. Pro level 1066x compact flash cards deliver UDMA 7 speeds with speeds up to 160MB/s for DSLR cameras. Capacities vary between 32GB and 256GB. SD Cards In keeping with the Gold series name, the Professional 2000x cards have a splash of gold on the label, making them instantly recognizable amongst a pile of other cards.