# Bus compatibility

The Smart 16/4 AT Plus Ringnode is compatible with:

- Any 16- or 32-bit computer that is compatible with the 16-bit ISA specification.

- 8-bit computers that are compatible with the 8-bit ISA specification. The Smart 16/4 AT Plus Ringnode cannot be configured as a bus master when installed in 8-bit expansion slots.

- Any 16- or 32-bit computer with expansion slots that is compatible with the EISA specification.