1PCS 4318 21P6856 18G 10K U160 SCSI Hard Disk for AS400 Minicomputer

Single-piece 18G hard disk drive designed for AS400 minicomputer systems. Model/part numbers: 4318 and 21P6856. Key specifications: 18G capacity, 10K RPM rotational speed, U160 SCSI interface (Ultra160 SCSI). Quantity: 1PCS. Intended for use in AS400/minicomputer environments that require U160 SCSI storage — confirm compatibility with your system before installation.