Getting Started

Support Spotlight

DiamondMax FAQs

Find answers to the most frequently asked questions about DiamondMax internal drives.

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Top Articles

Where can I find drivers for my SATA drive?

Find out where to find drivers for SATA drives.

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The BIOS does not detect or recognise the ATA/SATA hard drive

There are six main reasons why a system BIOS will not detect the presence of an internal hard drive.

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Firmware Updates

Seagate products are run by firmware. Having the latest firmware can improve the performance and/or reliability of your product.

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How do I Low-Level Format a SATA or ATA (IDE) Hard Drive?

Find out how to format your hard drive.

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How To's

Troubleshooting

Downloads

Utilities

Utilities

  • DiscWizard

    Seagate DiscWizard works with Maxtor and Seagate disc drives. The software lets you install your new disc drive quickly, with wizards that guide you through the processes of creating and formatting partitions on your disc drive, transferring and backing up your data. Learn more

  • MaxBlast 5

    MaxBlast works with Maxtor disc drives only. The software lets you install your new disc drive quickly, with wizards that guide you through the processes of creating and formatting partitions on your disc drive, transferring and backing up your data. Learn more

  • SeaTools for DOS

    The quick diagnostic tool that checks the health of your drive. Learn more

  • SeaTools for Windows

    The quick diagnostic tool that checks the health of your drive. Learn more

Specifications

 
Generation DiamondMax 20 DiamondMax 21 DiamondMax 22 DiamondMax 23
Capacity 160GB 40GB 320GB 250GB 1TB 750GB 500GB 320GB 160GB 1TB 750GB 500GB 320GB 250GB 160GB
Show me:
Form Factor 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5" 3.5"
Interface Options SATA 3Gb/s, ATA/IDE SATA 3Gb/s, ATA/IDE SATA 3Gb/s ATA/IDE, SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s SATA 3Gb/s
Performance                              
Spindle Speed (RPM) 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200
Cache (MB) 2 2 8 8 32 32 32 16 8 32 32 16 16 8 8
Average Latency (ms) 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16 4.16
Physical                              
Height (in/mm) (maximum) 0.787/19.99, 1.028/26.1 0.787/19.99, 1.028/26.11 1.028/26.1 1.028/26.1 1.028/26.1 1.028/26.1 1.028/26.1 0.794/20.17 0.794/20.17 1.028/26.1 1.028/26.1 0.787/19.98 0.787/19.98 0.787/19.98 0.787/19.98
Width (in/mm) (maximum) 4.010/101.6, 4.000/101.6 4.010/101.6, 4.000/101.6 4.010/101.85 4.010/101.85, 4.000/101.6 4.010/101.85, 4.000/101.60 4.010/101.85 4.010/101.85 4.00/101.6 4.000/101.6 4.000/101.60 4.000/101.60 4.000/101.6 4.000/101.6 4.000/101.6 4.000/101.6
Length (in/mm) (maximum) 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99
Weight (lbs/g) 1.28/580 1.44/580, 1.16/525 1.39/635 1.32/600 1.493/677, 1.389/630 1.396/633 1.199/543 0.893/405 0.860/390 1.371/622 1.371/622 0.915/415 0.915/415 0.915/415 0.915/415
Model Number DiamondMax Generations Product Interfaces Capacity Spindle Speed (RPM) Cache (MB)
STM3160212A DiamondMax 20   160GB 7200RPM 2MB
STM3160211AS DiamondMax 20   160GB 7200RPM 2MB
STM340211AS DiamondMax 20   40GB 7200RPM 2MB
STM3402111A DiamondMax 20   40GB 7200RPM 2MB
STM3320820AS DiamondMax 21   320GB 7200RPM 8MB
STM3250820AS DiamondMax 21   250GB 7200RPM 8MB
STM3250820A DiamondMax 21   250GB 7200RPM 8MB
STM31000340AS DiamondMax 22   1TB 7200RPM 32MB
STM31000334AS DiamondMax 22   1TB 7200RPM 32MB
STM3750330AS DiamondMax 22   750GB 7200RPM 32MB
STM3500320AS DiamondMax 22   500GB 7200RPM 32MB
STM3320614AS DiamondMax 22   320GB 7200RPM 16MB
STM3160813AS DiamondMax 22   160GB 7200RPM 8MB
STM31000528AS DiamondMax 23   1TB 7200RPM 32MB
STM3750528AS DiamondMax 23   750GB 7200RPM 32MB
STM3500418AS DiamondMax 23   500GB 7200RPM 16MB
STM3320418AS DiamondMax 23   320GB 7200RPM 16MB
STM3250318AS DiamondMax 23   250GB 7200RPM 8MB
STM3160318AS DiamondMax 23   160GB 7200RPM 8MB