NuBus is the expansion bus used in Mac II, IIx, IIcx, IIci, Quadra, and some PowerMac models from 1987 to 1995. The 96-pin DIN 41612 connector provides a 32-bit bus at 10 MHz for video and network cards.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | GND | Ground | GND |
| 2 | /RESET | System reset | I/O |
| 3 | +5V | 5V power | PWR |
| 4 | /PFW | Power failing warning | I/O |
| 5 | AD0 | Address data bus bit 0 | I/O |
| 6 | AD1 | Address data bus bit 1 | I/O |
| 32 | AD31 | Address data bus bit 31 | I/O |
| 33 | /ID0 | Slot ID bit 0 | I/O |
| 34 | /ID1 | Slot ID bit 1 | I/O |
NuBus is the expansion bus used in Mac II, IIx, IIcx, IIci, Quadra, and some PowerMac models from 1987 to 1995. The 96-pin DIN 41612 connector provides a 32-bit bus at 10 MHz for video and network cards.