The Yc2019 designation is often associated with specific chip models, most notably the and FC1179 .
Works with a wide range of NAND Flash, including 2D and 3D chips. Firstchip Yc2019
The FirstChip YC2019 is notorious in technical communities for several common failure points: Capacity Scams Firstchip Yc2019 — In-depth feature FC1178 The Yc2019