The current PCIe add-in-card storage market is separated into two general architectures. The first is ground-up, native PCIe designs, such as the Micron P320h. These devices eschew a typical SATA/SAS controller in favor of specialized flash controllers that have native PCIe interfaces. This is where the market is heading. In fact, later this year, you should start to see many more devices that are NVMe-based. But, we will save that discussion for a later time.
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