Sign up for our Newsletter. Keyboards / Mice / Input. Seagate - ST318417N - 18.4GB SCSI 50PIN 7200RPM 3.5 Hard Drive.The item "Seagate ST318417N 18.4GB SCSI 50PIN 7200RPM 3.5 Hard Drive" is in sale since Tuesday, October 28, 2014. 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 "yomargo" and is located in Swindon. This item can be shipped to all countries in Europe, Cayman islands, Philippines.