Lexar’s new Diamond-series Type-B CFexpress cards are the world’s fastest
This post is by from Popular Photography
With 4K video now the established standard and even higher resolution modes becoming more common—not to mention Raw capture—modern video cameras can output truly spectacular amounts of data. Thankfully, storage media performance continues to improve in lockstep with our ever-growing needs. As proof of the point, Lexar—nowadays a part of Chinese storage/memory-maker Longsys—has just set a new benchmark for Type-B CFexpress card performance.
With Lexar’s new Diamond-series cards, announced this week at the NAB Show in Las Vegas, the company claims a maximum read speed of 1900MB/s. That’s almost 10% faster than the 1750MB/s max read speed from the company’s existing Gold-series cards. Admittedly, though, that’s still only a scant 50MB/s better than the 1850MB/s read speed claimed by previous record-holder, Exascend, for its own recently-launched Type-B CFexpress cards.
Related: New gear: Nikon’s speedy CFexpress card will hit shelves this summer
It’s in the write speeds where we see the *really* big news, though. After all, that’s what dictates your video capture capabilities and buffer depths for still imaging. Read speeds, on the hand, matter most for playback and when it comes time to offload your data.
Lexar’s new Diamond-series cards offer a write speed up to 1700MB/s. By comparison, the brand’s Gold-series Type-B cards top out at a write speed of 1000MB/s, while its Silver-series cards can sustain only 600MB/s. That means the new Diamond-series cards should offer nearly double the write performance of the Gold-series, and more than triple the performance of Silver-series cards.
All of this is great news, but there are a few key details still to be revealed. Notably, Lexar has yet to disclose either the capacity range or pricing for the Diamond-series cards.
The Gold-series currently …