Is This CFexpress Type A Card a Fraud?

This story starts about a month ago when I discovered a CFexpress card on Amazon from a brand I had never heard of. The Airusan 256GB CFexpress Type A card carried a remarkably cheap $189.99 price tag, as well as the VPG400 logo that suggests it had been certified by the Compact Flash Association and qualified to deliver a minimum sustained write speed of 400MB/s. The strange thing was that VPG400-certified Type A cards are rare, and I had never even heard of Airusan. A big red siren was going off in my head. Could someone have just slapped the …

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