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ST1200MM0129
1.2GB EXOS 10E2400 SAS 10000 RPM 256MB 2.5IN
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.
ST1200MM0129 is a high-performance HDD built on a 3.5-inch form factor with a SATA III interface, engineered for rigorous enterprise use. It spins at 7200 RPM, offers a storage capacity of 1 TB with a 64 MB cache, and is designed for high workload demands with an annual workload rating of 550 TB/yr and an MTBF that meets enterprise standards for reliability and rated operating hours.
Utilizing advanced features such as helium-sealed technology and rotational vibration sensors with built-in vibration protection, this drive is optimized for multi-bay server environments. ST1200MM0129 is ideally implemented in data centers, desktops, NAS systems, and surveillance setups, while its efficient power consumption (8.5 Watts for read/write and 6.5 Watts in idle) makes it an excellent choice for energy-sensitive, mission-critical applications.
ST1200MM0129 price is is available on request. Get immediate quote.
Request bulk order quote for ST1200MM0129 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 | Desktop / Server / NAS / Surveillance | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SAS 12Gb/s | SATA III | SAS 12Gb/s | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 1 TB | 16 TB | 4 TB | 16 TB | 1 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 64 MB | 512 MB | 256 MB | 512 MB | 64 MB |
| Data Transfer Rate | Up to 210 MB/s | Up to 300 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 180 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 9.0 W | 8 Watts | 8.5 Watts | 8 Watts |
| Power Consumption (Idle) | 6.5 Watts | 6.0 W | 5 Watts | 6 Watts | 5 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Rotational Vibration Sensors | Rotational Vibration Sensors | Dual Actuator | Rotational Vibration Sensors | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–55°C | 5–60°C | 5–55°C |
| Product Name | ST1200MM0129 Enterprise HDD | Seagate Exos X16 ST16000VE000 | STKM2000400 High-Performance HDD | Seagate Exos X16 16TB 7200 RPM SAS Enterprise Hard Drive | ST1200MM0009 |
| Height | 1.03 inches | 1.03 in | 1.03 inches | 1.03 in | 1.03 inches |
| Width | 4.00 inches | 4.00 in | 4.00 inches | 4.00 in | 5.79 inches |
| Depth | 5.78 inches | 5.79 in | 5.79 inches | 5.79 in | 4.01 inches |
| Weight | 1.5 lbs | 4.85 lbs | 2.0 lbs | 4.3 lbs | 3.3 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.
Fast 1.2TB SAS drive. The 10K RPM speed is essential for our fast-paced server.
Excellent performance for a 2.5-inch drive. Handles heavy database workloads without breaking a sweat.
Highly reliable SAS storage. Perfect for enterprise-level virtualization and high-speed data access.
Consistent 10000 RPM performance. The 256MB cache really helps with sequential data flows.
Professional-grade storage. Compact size with enterprise-level speed and endurance for our rack servers.
Impressive IOPS for the capacity. A very stable drive for critical business infrastructure.
The ST1200MM0129 offers 1.2 TB of raw SAS storage.
It uses a dual-port SAS 12 Gb/s interface for high-speed connectivity.
The drive spins at 10 000 RPM to deliver consistent performance.
It includes 256 MB of DDR4 cache to accelerate read/write operations.
The drive is a 2.5-inch SAS hard drive with a 15 mm height profile.
Yes. It fully supports hot-swapping in SAS-enabled server and storage enclosures.
The typical rotational latency is 3 ms for fast data access.
It boasts a 2.5 million-hour MTBF rating for enterprise-grade reliability.
It operates reliably between 5 °C and 60 °C ambient temperature.
It’s designed for enterprise NAS, SAN, data center and high-performance computing workloads.
Yes. It’s certified for leading OEM servers including Dell EMC, HPE and Lenovo.
Idle power is 4.5 W and active power peaks at 8 W under full load.
No. This model does not include integrated self-encryption features.
It supports SAS Error Recovery Control and rotational vibration tolerance for data integrity.
The drive comes with a 5-year limited warranty backed by Seagate’s global support.