Hey, i'm new with SCSI technology. I have a seagate cheetah 10k.7 Ultra-320 SCSI disk and want to plug it on my desktop. By what i've read, i'll need a host adapter that connects to the PCI bus of the motherboard and by SCSI connection to the SCSI disk. I only have a host adapter wich has 2 connections: external Centronics C50 and internal idc50. How can i connect the disk at the host adapter, if the disk connects by SCA/SCA2? Am i gonna need any adapter? Will it affect the disk speed?

P.S: the host adapter appears to have 10/15 years.

Thanks in advance