Seagate Desktop HDD Technical Specifications
| 4TB1 | 3TB1 | 2TB1 | 1TB1 | 500GB1 | 320GB1 | 250GB1 | |
| Model Number | ST4000DM000 | ST3000DM001 | ST2000DM001 | ST1000DM003 | ST500DM002 | ST320DM000 | ST250DM000 |
| Model Name | Desktop HDD | formerly Barracuda | formerly Barracuda | formerly Barracuda | formerly Barracuda | formerly Barracuda | formerly Barracuda |
| Interface Options | SATA 6Gb/s NCQ | SATA 6Gb/s NCQ | SATA 6Gb/s NCQ | SATA 6Gb/s NCQ | SATA 6Gb/s NCQ | SATA 6Gb/s NCQ | SATA 6Gb/s NCQ |
| Performance | |||||||
| SATA Transfer Rates Supported (Gb/s) | 6.0/3.0/1.5 | 6.0/3.0/1.5 | 6.0/3.0/1.5 | 6.0/3.0/1.5 | 6.0/3.0/1.5 | 6.0/3.0/1.5 | 6.0/3.0/1.5 |
| Cache, Multisegmented (MB) | 64 | 64 | 64 | 16 | 16 | 16 | 16 |
| Spindle Speed(RPM) | 5900 | 7200 | 7200 | 7200 | 7200 | 7200 | 7200 |
| Special Features | |||||||
| Seagate OptiCache Technology | Yes | Yes | Yes | Yes | No | No | No |
| Seagate Acutrac Technology | Yes | Yes | Yes | Yes | No | No | No |
| Seagate SmartAlign Technology | Yes | Yes | Yes | Yes | No2 | No2 | No2 |
| How Much Will it Store? | |||||||
 Digital Music (Songs)Based on 4.096MB song,128kbps bit rate,11:1 audio compression ratio |
1,000,000 | 750,000 | 500,000 | 250,000 | 125,000 | 80,000 | 62,000 |
 Digital Photos (Files)Average file size using cameras highest resolution JPEG mode |
819,200 | 614,400 | 409,600 | 204,800 | 102,400 | 65,536 | 51,200 |
 HD Video (Hours)Based on H.264 compression at a 6.75Mbs bitrate |
493 | 370 | 247 | 123 | 62 | 39 | 31 |
| 1One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity.2Seagate ships this drive in both 4K- and 512-byte sectors. SmartAlign technology is included on 4K sector drives. Both drives are functionally and physically equivalent. | |||||||
Count on Seagate to deliver the storage innovations that bring your costs down and crank your storage up.
Are you worried about moving beyond 2TB? You don't have to. The Seagate DiscWizard™ utility makes this transition a snap:
Seagate Desktop HDD, 1TB-per-disk technology incorporates 340,000 unique tracks in the width of a single inch. This incredible storage density drives new capacity possibilities and lowers your total storage costs.
Seagate AcuTrac™ technology enables storage densities with accurate reading and writing to nano-sized tracks that are only 75 nanometers wide! That’s about 1/500th the size of the period at the end of this sentence.
Seagate Desktop HDDs with 1TB-per-disk have advanced power modes to save more energy while in idle states—without sacrificing performance.
Desktop HDDs are produced using the most sophisticated manufacturing process in the industry, with a focus on environmental stewardship.
The sure way to get native access to hard drives bigger than 2TB is to adopt the new BIOS standard called UEFI. If you’re not ready for the new standard, Seagate provides an alternative.
Free DiscWizard™ software from Seagate provides you a means to effectively utilize your 3TB and 4TB Seagate Desktop HDDs, even with Windows XP and using the standard PC BIOS. Get your free copy to go beyond 2TB today!
Seagate Desktop HDDs are the world's most popular desktop storage solutions. With consistent quality and performance-enhancing innovations and features like native command queuing and perpendicular recording, Seagate delivers time— and time again.
Additionally, Seagate Desktop HDDs are produced using the most sophisticated manufacturing process in the industry, with a focus on environmental stewardship.
Seagate® Desktop HDDs with 1TB-per-disk have advanced power modes to save more energy while in idle states—without sacrificing performance.
Desktop HDDs are produced using the most sophisticated manufacturing process in the industry, with a focus on environmental stewardship.
The Seagate® Desktop HDD is the one drive for every need, supported by 30 years of trusted performance, reliability and simplicity.
