NCR53c710 SCSI Controller (136075-001) SystemPro/XL 486/50 PS 486/33, 486DX2/66, 5/60 PS VS 486SX/33, 486DX/33, 486DX2/66 PL1000 486DX2/66, 5/60 PL2000 486/50, 5/66, 90 PL4000 486/50, 5/66, 90, 100 32-Bit Fast SCSI-2 SCSI Controller OPT: 142013-001 SP: 142040-001 ASSY: 002682-001