This article makes several claims that are trivial to disprove:
> The 4TB capacity doubles that of the largest microSD cards, earning it the title for the world's largest removable memory card.
> CFexpress, known for its superior speed. Announced last year, the latest generation, CFexpress 4.0, supports up to four PCIe 4.0 lanes and 2GB/s per lane. Neither of those card formats can come close to offering 4TB of storage, however.
CFexpress is mostly just overpriced PCIe. You can make your own 4 TB CFexpress card with a small adapter and a 4 TB M.2 SSD that supports PCIe. It stands to reason that if there are 4 TB M.2 PCIe SSDs that are about the size of a CFexpress card, then there are also 4 TB CFexpress cards.
> The 4TB capacity doubles that of the largest microSD cards, earning it the title for the world's largest removable memory card.
> CFexpress, known for its superior speed. Announced last year, the latest generation, CFexpress 4.0, supports up to four PCIe 4.0 lanes and 2GB/s per lane. Neither of those card formats can come close to offering 4TB of storage, however.
CFexpress cards are physically larger than SD cards and have no trouble squeezing in 4 TB. They're uncommon, but they do already exist: https://www.bhphotovideo.com/c/product/1711327-REG/red_digit...
CFexpress is mostly just overpriced PCIe. You can make your own 4 TB CFexpress card with a small adapter and a 4 TB M.2 SSD that supports PCIe. It stands to reason that if there are 4 TB M.2 PCIe SSDs that are about the size of a CFexpress card, then there are also 4 TB CFexpress cards.
Does anyone have a better source?