IBM 3.5 Type DCHS 4GB SCSI 1 50 Pin Hard Drive P/N 1000934-03. To my knowledge the largest 50 pin SCSI 1 drives made were the 4GB ones, then they switched to SCSI 2. The item "IBM 3.5 Type DCHS 4GB SCSI 1 50 Pin Hard Drive P/N 1000934-03" is in sale since Friday, April 17, 2020. This item is in the category "Computers/Tablets & Networking\Drives, Storage & Blank Media\Hard Drives (HDD, SSD & NAS)\Internal Hard Disk Drives".The seller is "jmorand" and is located in Leominster, Massachusetts. This item can be shipped worldwide.