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- Seagate SkyHawk AI 18TB Surveillance HDD - 7200RPM 256MB SATA III Seagate SkyHawk AI 18TB Surveillance HDD - 7200RPM 256MB SATA III
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Seagate SkyHawk AI 18TB Surveillance Hard Drive
The Seagate SkyHawk AI 18TB internal hard drive delivers enterprise-grade storage specifically engineered for AI-enabled surveillance systems. With 7200RPM spindle speed and 256MB cache buffer, this 3.5-inch SATA III drive handles demanding multi-camera NVR and DVR workloads with sustained data transfer rates up to 260MB/s.
AI-Optimized Surveillance Performance
Built for continuous 24/7 operation in surveillance environments, this drive features Native Command Queuing with command ordering to maximize performance in demanding applications. The 600MB/s burst data transfer rate ensures smooth recording and playback across multiple high-resolution camera streams simultaneously. PowerChoice technology provides selectable power savings without compromising reliability.
Technical Specifications
The drive utilizes perpendicular recording technology across 9 discs with 18 heads, achieving an areal density of 1155Gb/in². With 4.16ms average latency and 512-byte logical sectors (4096-byte physical sectors), it delivers consistent performance for security camera storage systems. The Top Cover Attached motor design provides excellent vibration tolerance in multi-drive configurations.
Reliability and Diagnostics
S.M.A.R.T. drive monitoring and reporting capabilities enable proactive system management, while SeaTools diagnostic software performs comprehensive drive self-tests. The Worldwide Name (WWN) capability uniquely identifies each drive for enterprise tracking. Latching SATA cables and connectors ensure secure connections in professional installations.
Operating Parameters
Operating temperature range spans 0°C to 65°C (drive reported temperature), with voltage tolerance of 5V ±5% and 12V ±10%. Startup current peaks at 2.0A on 12V rail, with power-on to ready time of 23-30 seconds. The drive weighs 670g and operates reliably in ambient surveillance environments.
Key Features
256 MB data buffer.
7200 RPM spindle speed.
Full-track multiple-sector transfer capability without local processor intervention.
High instantaneous (burst) data-transfer rates (up to 600MB per second).
Native Command Queuing with command ordering to increase performance in demanding applications.
PowerChoice for selectable power savings
Perpendicular recording technology provides the drives with increased areal density.
SeaTools diagnostic software performs a drive self-test that eliminates 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
Specifiactions
Drive specification
Formatted (512 bytes/sector)
18TB
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
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer
256MB (262,144KB)
Weight: (maximum)
670g (1.477 lb)
Average latency
4.16ms
Power-on to ready (sec) (typ/max)
23/30
Standby to ready (sec) (typ/max)
23/30
Startup current
(typical) 12V (peak) 2.0A
Voltage tolerance (including noise)
5V ± 5%
12V ± 10%
Operating ambient temperature (min °C)
* 0°C (Ambient)
Operating temperature (max °C)
* 65°C (Drive Reported Temperature)
- Type Of Drive: HDD
- Physical Drive Size: 3.5
- Connection: SATA III
- Capacity: 18TB
- Drive Classification: Surveillance
- Packaging: OEM
Delivery & Shipping Policy
Last updated: 19/09/2025
At Tech Direct UK, we aim to get your order to you as quickly and efficiently as possible. Please see below for our delivery terms.
1. Delivery Options & Costs
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Free Delivery – Orders over £50 qualify for free UK standard delivery.
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Standard Delivery – Orders under £50 are charged at £4.99.
2. Delivery Times
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Next Day Delivery – The majority of items are shipped via next day courier if ordered before 2:00pm (Monday–Friday).
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Orders placed after 2:00pm, on weekends, or bank holidays will be processed the next working day.
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Larger or Heavy Items – Certain products (e.g., heavy furniture, oversized goods) may take 2–5 working days for delivery. Estimated times will be displayed at checkout.
3. Delivery Areas
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We deliver to all mainland UK addresses.
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Deliveries to remote areas (e.g., Highlands, Islands, Northern Ireland) may take longer or incur additional charges — these will be shown at checkout before confirming your order.
4. Tracking Your Order
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Once dispatched, you will receive an email confirmation with tracking details (where available).
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You can track your delivery via the courier’s website.
5. Missed Deliveries
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If you are not available at the time of delivery, the courier will leave a card or attempt redelivery.
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Repeated failed delivery attempts may result in the parcel being returned to us. In this case, re-delivery charges may apply.
6. Risk of Loss
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Risk of loss or damage to the goods passes to you once they are delivered.
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Please inspect your order upon receipt and notify us of any issues within 48 hours.
7. Contact Us
If you have any questions about delivery, please contact us:
📧 Email: support@techdirectuk.com