Key facts
Start here
Seagate DiamondMax 21 PATA Product Manual
This document describes the functional, mechanical, and interface specifications for the Seagate DiamondMax 21 PATA model drives. Key features include a 7,200-RPM spindle speed, high instantaneous data transfer rates up to 100 Mbytes per second using Ultra DMA mode 5, and Tunneling magnetoresistive (TMR) recording heads with EPRML technology.
Read onlineSeagate DiamondMax 21 PATA specifications
| Formatted Capacity | 320, 300, 250, 200, 160, or 80 Gbytes |
|---|---|
| Spindle Speed | 7,200 RPM |
| Max I/O Data-Transfer Rate | 100 Mbytes/sec |
| Cache Buffer | 2 to 16 Mbytes |
| Height (max) | 26.1 mm |
| Weight | 365 to 635 grams |
| Ambient Temperature (operating) | 0° to 60°C |
| Voltage Tolerance (5V) | ± 5% |
All Seagate DiamondMax 21 PATA documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum I/O data-transfer rate for these drives?
The maximum I/O data-transfer rate is 100 Mbytes/sec.
What are the supported ATA data-transfer modes?
The drives support PIO modes 0–4, Multiword DMA modes 0–2, and Ultra DMA modes 0–5.
What are the supported models in this manual?
The manual covers models STM3320820A, STM3250620A, STM3200820A, STM380215A, STM3300620A, STM3250820A, and STM3160215A.
What is the maximum data transfer rate?
The drives support data transfer rates of up to 100 Mbytes per second using Ultra DMA mode 5.