Hyperstone offers the general-purpose E1 processors, the HyNet networking processors, and NAND-flash controllers that the company based on a unified RISC/DSP architecture. The S6 SD 2.0/MMC 4.2 controller targets high-performance SD cards and MMCs. The CFA3.0/ATA6F4 controller targets high-performance CF cards and SSDs (solid-state-disk) drives. The S6 and F4 controllers support MLC (multilevel-cell) and SLC (single-level-cell) flash from all NAND-flash vendors. Manufacturing tools for the S6 and F4 NAND-flash-memory controllers include reference designs, development utilities, and operating firmware that implements Hyperstone's patented flash-management techniques.