The hyphen at the end of your string suggests the identifier was cut off. In some firmware dump files or logging outputs, the full string might be something like:
Notice the parentheses: (PS2270) . This is because the PS2251-70’s firmware version 5.10.10 or 8.03.2c identifies its USB bridge mode as “PS2270” for legacy OS compatibility. ps2251-70-ps2270-
PS2251-70 and PS2270 are USB flash controller chips developed by Phison Electronics Corp., a leading Taiwanese company that specializes in designing and manufacturing flash memory controllers and other semiconductor products. These chips are designed to manage the flow of data between the host device and the flash memory, enabling efficient and reliable data storage and retrieval. The hyphen at the end of your string