Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The Lexar Professional 1667x is a UHS-II SDXC card aimed at photographers and videographers who need fast writes and reliable capacity. Lexar rates it for read speeds up to 250MB/s and write speeds up to 120MB/s, with V60 video speed class, so it handles 4K video and burst shooting. It sits below Lexar's 2000x and Diamond series in speed but costs less than those UHS-II flagships, and it beats most UHS-I cards in a UHS-II slot. Owners generally find it dependable for stills and 4K clips, though it is not the card for 8K or sustained high-bitrate work.
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Lowest price we've seen: $209.98 on Nov 9 at Best Buy. Tracked across 3 stores since Nov 9.
Reviewers and owners describe the 1667x as a solid mid-tier UHS-II card that clears 4K video and burst shooting without drama. Most praise its reliability and value against faster Lexar cards; a minority report slower-than-advertised writes or a card failing after months of use.
