Seagate SkyHawk AI 18TB 3.5" 7200RPM 256MB Cache SATA III Internal Hard Drive
Seagate SkyHawk AI 18TB 3.5" 7200RPM 256MB Cache SATA III Internal Hard Drive is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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- Orders are typically dispatched within 1-3 working days.
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Free Returns
Free Returns
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Seagate SkyHawk AI 18TB 3.5" 7200RPM 256MB Cache SATA III Internal Hard Drive
£317.90
Key Features
- 256 MB cache buffer
- 7200 RPM spindle speed
- Full-track multiple-sector transfer capability without local processor intervention
- High instantaneous (burst) data transfer rates up to 600 MB/s
- Native Command Queuing with command ordering for increased performance in demanding applications
- PowerChoice for selectable power savings
- Perpendicular recording technology for increased areal density
- SeaTools diagnostic software supports drive self-test to reduce unnecessary drive returns
- State-of-the-art cache and on-the-fly error-correction algorithms
- Support for S.M.A.R.T. drive monitoring and reporting
- Supports latching SATA cables and connectors
- Top Cover Attached motor for excellent vibration tolerance
- Worldwide Name (WWN) capability uniquely identifies the drive
Specifications
Drive Specifications
| Specification | Value |
|---|---|
| Capacity (formatted, 512 bytes/sector) | 18 TB |
| Heads | 18 |
| Discs | 9 |
| Bytes per logical sector | 512 |
| Bytes per physical sector | 4096 |
| Recording density, KBPI (Kb/in max) | 2321 |
| Track density, KTPI (ktracks/in avg.) | 480 |
| Areal density (Gb/in² avg) | 1155 |
| Spindle speed (RPM) | 7200 |
| Internal data transfer rate (Mb/s max) | 2833 |
| Sustained data transfer rate OD (MB/s max) | 260 |
| I/O data-transfer rate (MB/s max) | 600 |
ATA Data-Transfer Modes Supported
| Mode Type | Modes Supported |
|---|---|
| PIO | 0–4 |
| Multiword DMA | 0–2 |
| Ultra DMA | 0–6 |
Cache
| Specification | Value |
|---|---|
| Cache buffer | 256 MB (262,144 KB) |
Physical
| Specification | Value |
|---|---|
| Weight (maximum) | 670 g (1.477 lb) |
Performance
| Specification | Value |
|---|---|
| Average latency | 4.16 ms |
| Power-on to ready (typ/max) | 23 / 30 sec |
| Standby to ready (typ/max) | 23 / 30 sec |
| Startup current, 12V (peak, typical) | 2.0 A |
Power and Voltage
| Specification | Value |
|---|---|
| Voltage tolerance (including noise) – 5V | 5V ± 5% |
| Voltage tolerance (including noise) – 12V | 12V ± 10% |
Environmental
| Specification | Value |
|---|---|
| Operating ambient temperature (min) | 0°C (Ambient) |
| Operating temperature (max) | 65°C (Drive Reported Temperature) |


