DayStar Turbo 040
NuBus based 040 processor upgrade card compatible with numerous models including Macintosh SE/30, Macintosh II, Macintosh IIx, Macintosh IIcx, Macintosh IIci, Macintosh IIsi (with adapter), Macintosh IIvx, Macintosh IIvi.
Released by DayStar Digital in 1993.
- May encounter compatibility issues with aftermarket ROM SIMMs. "It is known that the Daystar Turbo 040 maps its ROM into the $40880000 to $408A0000 address range, which will conflict with the beginning of the ROM disk image."