At CES 2021, Phison gave us the usual updates on their SSD controller roadmap. The most significant new products coming this year are a pair of USB flash drive controllers for high-end portable SSDs, designed to compete against current solutions that combine a USB to NVMe bridge chip with a standard NVMe SSD controller. Phison is also planning to introduce a new entry-level DRAMless NVMe SSD controller later this year. Phison U17 and U18 USB 3.2 SSD Controllers For portable SSDs, Phison is introducing the U17 and U18 controllers. The U17 uses a USB 3.2 Gen 2x1 (10Gb/s) host interface and a two-channel NAND interface running at up to 1200 MT/s. The U18 doubles these: USB 3.2 Gen2x2 (20Gb/s) and a four-channel NAND interface. The performance...

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