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ST6000DM003
6TB BARRACUDA SATA 5400 RPM 256MB 3.5IN
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.

Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
ST6000DM003 is a 3.5-inch HDD built for high-performance desktop, server, NAS, and surveillance applications. It features a SATA III interface with a robust 7200 RPM spindle speed, delivering a 6 TB storage capacity paired with a 64 MB cache to ensure responsive data handling and efficiency.
This drive is engineered for demanding workloads with an annual rating of 180 TB/yr while operating within a 5–55°C temperature range. Although it does not include advanced enhancements such as helium sealing, vibration protection, or dual actuator technology, its optimized power consumption of 8.5 Watts (read/write) and 5.5 Watts (idle) makes it a reliable choice for data centers, desktops, and NAS environments.
ST6000DM003 price is is available on request. Get immediate quote.
Request bulk order quote for ST6000DM003 for additional pricing. Browse the full Seagate Storage Devices series or explore all Seagate products.
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| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 2.5-inch | 3.5-inch |
| Storage Capacity | 6 TB | 6 TB | 6 TB | 1 TB | 4 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 5400 RPM | 7200 RPM |
| Cache (Buffer Size) | 64 MB | 256 MB | 256 MB | 128 MB | 128 MB |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 150 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 180 TB/yr | 550 TB/yr | 550 TB/yr | 180 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 9.6 W | 9.0 Watts | 3W | 8.0 Watts |
| Power Consumption (Idle) | 5.5 Watts | 6.8 W | 5.1 Watts | 1.5W | 5.0 Watts |
| Encryption Support | No | No | AES 256-bit | No | No |
| Helium Sealed | No | Helium-Sealed | Helium-Sealed | No | Helium-Sealed |
| Drive Bays Supported | Single | Multi-bay | Multi-bay | Single | Multi-bay |
| Vibration Protection | No | Yes | Yes | No | Yes |
| Operating Temperature | 5–55°C | 5–55°C | 5–60°C | 5–55°C | 5–60°C |
| Product Name | Seagate Barracuda ST6000DM003 | ST6000VN001 6TB Enterprise SATA Hard Drive | Seagate ST6000NM029A 6TB 7200 RPM 256MB Cache SAS Enterprise HDD | Seagate Barracuda ST1000LM035 | ST4000VX013 Enterprise 4TB HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 0.28 inches | 1.03 inches |
| Width | 4.01 inches | 5.79 inches | 4.0 inches | 2.75 inches | 5.79 inches |
| Depth | 5.79 inches | 8.74 inches | 5.8 inches | 3.94 inches | 7.79 inches |
| Weight | 2.43 lbs | 1.8 lbs | 1.80 lbs | 0.53 lbs | 1.5 lbs |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Massive 6TB desktop storage. Perfect for backing up large files and media libraries easily.
Consistent and quiet operation. The 256MB cache helps keep file transfers moving smoothly.
Reliable high-capacity drive for archiving. Great value for large scale home office backups.
Simple setup and stable performance. A dependable choice for secondary desktop storage.
Provides plenty of space with reliable performance. Ideal for long-term data retention needs.
Quiet and efficient. The 6TB capacity is great for massive document storage arrays.
The Seagate Barracuda ST6000DM003 provides 6 TB of raw storage capacity.
It uses a standard SATA 6 Gb/s interface in a 3.5-inch form factor.
The drive spins at 5400 RPM, balancing performance and energy efficiency.
The drive features a 256 MB cache buffer for improved data access.
The ST6000DM003 delivers up to 180 MB/s sequential data transfer rates.
With a 5400 RPM spindle speed, the average latency is approximately 5.5 ms.
Yes, it is universally compatible with Windows, macOS, and Linux via its SATA interface.
Typical power draw is 4.38 W during active use and 3.9 W at idle.
The drive is rated for 1 million hours MTBF under normal operating conditions.
This model is backed by a 2-year limited warranty from Seagate.
Yes, it supports basic desktop RAID setups but is not optimized for 24/7 NAS environments.
The drive measures 147 × 101.85 × 26.11 mm (L × W × H).
Operational noise is rated at 26 dBA idle and 29 dBA during seek.
The certified operating range is 0 °C to 60 °C.
Mount it in a 3.5-inch drive bay, connect the SATA data cable to your motherboard, and attach the SATA power cable.
Yes, hot-swapping is supported when used with a compatible SATA hot-swap controller or backplane.