MHz slots in 4U rackmountable systems 2 100 MHz slots and one 66 MHz slot in 2U rackmountable systems. All PCI slots in each Tezro model are 3.3V card slots. A single U160 SCSI connector was produced for attaching external peripherals, as was an optional FireWire card. References External links Remotely installing SGI IRIX 6.5 from a GNU/Linux server Tezro Advanced RISC Computing 64-bit computers