After previously demonstrating them back at CES, ADATA has officially launched its SD cards based on 3D MLC NAND. The new Premier ONE UHS-II cards offer capacities up to 256 GB, sequential read speed of up to 290 MB/s and extended temperature ranges. The new cards are also the first products from ADATA that are compliant with the V90 requirements for SD devices aimed at UHD and 360° video capture. In addition, ADATA has added Premier UHS-I Class 10 series of microSD cards with up to 128 GB capacity and mainstream performance levels to its product line.

The ADATA Premier ONE UHS-II cards will be available in 64 GB, 128 GB and 256 GB configurations in SDXC and microSDXC form-factors. The new memory cards are rated for up 275/290 MB/s sequential read speed as well as up to 155/260 MB/s sequential write speed, depending on the capacity and form-factor (the microSDXCs are a slower). The Premier ONE UHS-II cards are also compliant with Video Speed Class V90 specification, which mandates minimum write speed of 90 MB/s to smooth recording of UHD and 360° video. The enhanced performance of the new SD products by ADATA is enabled by 3D MLC NAND memory with large block and page sizes as well as a new controller (which I suspect uses some kind of pSLC technique to ensure fast writes, but that has not been confirmed by ADATA). In addition to performance-related improvements, the controller also supports write-in protection as well as ECC. To take full advantage of the new cards, one will need a device that fully supports the UHS-II interface and has the extra pins the wider bus requires. Still, the cards are compatible with all types of SD-supporting devices (cameras, card readers, etc.) albeit at lower speeds.

Another important selling point of the ADATA Premier ONE UHS-II cards is their rugged design. The SDs are explicitly adverised as being both waterproof and dust-proof. Meanwhile, the cards are also rated to work at extended temperature range between -25°C to 85°C, which makes them suitable for industrial applications.

ADATA Premier ONE UHS-II and Premier UHS-I Class 10 SD Cards
  Premier ONE UHS-II Premier UHS-I Class 10
64 GB 128 GB 256 GB 64 GB 128 GB 256 GB 16/32/64/128 GB
Form-Factor SDXC MicroSDXC MicroSDHC/MicroSDXC
NAND Type 3D MLC unknown
Read Speed 290 MB/s 275 MB/s 85 MB/s
Write Speed 260 MB/s 155MB/s 25 MB/s
Minimum Sequential Write Speed 90 MB/s 10 MB/s
Interface UHS-II UHS-I
Availability Spring 2017
SDA Labels UHS-II, Class 10, U3, V90 UHS-I, U1, Class 10

As for the Premier UHS-I Class 10 series of microSD cards, ADATA will offer them in 16 GB, 32 GB, 64 GB and 128 GB configurations, with up to 85 MB/s and up to 25 MB/s sequential read/write speeds. The cards also feature built-in ECC and are also protected against water and dust, but do not support extended temperature ranges.

ADATA has not announced recommended prices for its Premier ONE UHS-II SD and microSD cards. Since the devices offer a rather strong combination of features (high performance, V90-compliancy, extended temperature ranges, 3D MLC), they will naturally belong to the highest end of the SD spectrum. As for the Premier UHS-I Class 10 cards, expect them to be priced competitively against direct rivals.

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Source: ADATA

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  • BrokenCrayons - Monday, April 17, 2017 - link

    V90...sounds like we're going to get up to 56 kbit/s down and 33.6 kbit/s up and thank goodness no one needs to worry about whether or not their ISP supports K56flex or X2 anymore!
  • Demon-Xanth - Monday, April 17, 2017 - link

    Lucky for me I never needed to worry about that. The phone system where I lived until 2008 never did (and still doesn't) support more than 28.8k.
  • baka_toroi - Monday, April 17, 2017 - link

    Life must be tough in Eritrea.
  • Alexvrb - Tuesday, April 18, 2017 - link

    Barbed wire makes excellent phone lines! Well, until you need fancy dial-up interwebs, anyway.
  • Demon-Xanth - Tuesday, April 18, 2017 - link

    That was actually just 20 miles east of Sacramento. The telcos stopped improving the landlines in the area back in the '80s and have been just doing minimal maintenance ever since. Not dense enough for cable companies to give a hoot. So many people just use cell hot spots for internet these days. It's the fastest and most affordable broadband available.
  • BrokenCrayons - Tuesday, April 18, 2017 - link

    That stinks, but I'm in a somewhat similar situation living in just far enough from a major population center to limit broadband internet options. 12 mbit DSL is the one and only option and Century Link is disinterested in doing anything to expand service since there's almost no one living here.
  • Alexvrb - Tuesday, April 18, 2017 - link

  • BrokenCrayons - Tuesday, April 18, 2017 - link

    Haha, that's why I said "up to 56 kbit/s." :3
  • damianrobertjones - Tuesday, April 18, 2017 - link

    Sales of the standard cards must be falling, "Quick, release a speed increase and the suckers will lap it all up!"

  • damianrobertjones - Tuesday, April 18, 2017 - link

    P.s. MUST BUY ONE NOW! Agggh

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