What is the interface used by the Seagate ST1000DM003 hard drive? The Seagate ST1000DM003 utilizes the Serial ATA III interface. Start New Search HITACHI HDT721050SLA380 (500 GB S-ATA II) WDC WD4000ABYS (400 GB S-ATA II) WDC. If the drive is powered-off before issuing flush cache command, in some instances, Note the end user data in the DRAM cache might not be committed to the disk. 220 Physical characteristics Maximum height 20. 787. Seagate AcuTrac™ servo technology delivers dependable performance, even with hard drive track widths of only 75 nanometers. Seagate SmartAlign™ technology provides a simple, transparent. When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer's operating system may use a different standard of measurement and report a lower capacity. 5" Internal HDD from Seagate offers a storage capacity of up to 1TB and operates using a SATA III 6 Gb/s interface and a 256MB cache, both of which help to ensure.