Seagate - #10yearchallenge? How about #39yearchallenge! The ST506, released in 1980, was Seagate's first drive and the world's first 5.25-inch form factor hard drive with 5MB capacity. This drive enabled the PC
Seagate ST-506 - Higher Intellect Vintage Wiki
Seagate ST-506 5MB. 5.25" hard drive that revolutionized the industry, 1 drive. | #1864334644
Seagate ST-506 and IBM PC XT? | Vintage Computer Federation Forums
ST21M, ST21R Hard Disk/Floppy Controller Settings and Configuration
Every SECOND there are EIGHT more Seagate drives in the world • The Register
Definition of ST506 | PCMag
Seagate ST-506 Vintage 5MB Hard Disk Drive - Using on a Vintage PC.
Shugart ST506 5MB Hard Disk Drive | Computer history, Old computers, Hard drive storage