# Controllers

Part ID: 2.08b · Layer 2 (Memory & storage) · child of 2.08

The chip inside or paired with an SSD that manages NAND wear-leveling, error correction, and the drive's host interface.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| Kioxia | manufacturer | inferred | public | 285A.T |  |
| Marvell | manufacturer | inferred | public | MRVL |  |
| Microchip | manufacturer | inferred | public | MCHP |  |
| Micron | manufacturer | inferred | public | MU |  |
| Phison | manufacturer | inferred | public | 8299.TWO |  |
| Samsung Electronics | in_house | inferred | public | 005930.KS | plus in-house at |
| Silicon Motion | manufacturer | inferred | public | SIMO |  |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.