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Samsung Readies PCIe 5.0 QLC SSD with a Custom RISC-V Controller
Apr. 02, 2026 –
By TechPowerUp
Samsung has developed a new SSD controller based on the open-source RISC-V instruction set, moving away from the Arm ISA in some of its SSD controllers. With the introduction of the BM9K1 PCIe 5.0 QLC NAND SSD, Samsung has officially created a proprietary RISC-V IP that will serve as a foundation for many SSDs the company plans to release. Announced at the China Flash Market Summit 2026, the BM9K1 SSD has been showcased with just one metric: sequential read speed. Achieving a maximum sequential read speed of 11.4 GB/s, Samsung has reached impressive speeds for QLC NAND Flash. While the sequential write speed is unknown, it is expected to be around 10 GB/s, varying slightly depending on Samsung's design. Typically, high-performance SSDs use TLC NAND, as seen in Samsung's own 9100 Pro SSD, which we reviewed. It features 3D TLC V-NAND V8 with 236 layers. While this SSD uses TLC NAND and has a proprietary Samsung Presto 5 nm controller running on Arm-based cores, Samsung might transition a significant portion of its SSD lineup to a RISC-V based design with the BM9K1, offering satisfactory performance with QLC NAND.
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