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ZA960NX1A001
IronWolf 125 Pro - 960 GB - 2.5" - 545 MB/s - 6 Gbit/s
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ZA960NX1A001 is a high-performance HDD engineered for enterprise storage applications. It features a 3.5-inch form factor with a SAS 12Gb/s interface, operating at 7200 RPM with a robust 12 TB capacity and a 256 MB cache to support demanding workloads and a high annual workload rating of 550 TB/yr.
ZA960NX1A001 is built to deliver exceptional reliability with an MTBF rated at 2,500,000 hours and optimized for continuous 24/7 operation. Its advanced design includes helium-sealed construction, vibration protection, and dual actuator technology, while maintaining efficient power consumption of 9 Watts during read/write operations and 6 Watts when idle, making it ideal for data centers, enterprise servers, and NAS environments.
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| ZA960NX1A001 |  ST1800MM0129 |  ST20000NE000 |  ST3000VX009 |  ST6000NM0195 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Server | Desktop / Server / NAS / Surveillance / Enterprise Storage | Server |
| Interface | SAS 12Gb/s | SATA III | SAS 12Gb/s | SATA III | SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 12 TB | 18 TB | 20 TB | 3 TB | 6 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 512 MB | 128 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 9 Watts | 9 Watts | 8 Watts | 7 Watts | 9.1 Watts |
| Power Consumption (Idle) | 6 Watts | 5 Watts | 5 Watts | 3 Watts | 7.1 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | No | No |
| 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 | Dual Actuator | Dual Actuator | Dual Actuator | N/A | Rotational Vibration Sensors |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | ZA960NX1A001 Enterprise 12TB SAS HDD | ST1800MM0129 Enterprise HDD | Seagate Exos X20 ST20000NE000 | ST3000VX009 Enterprise 3TB HDD | Seagate ST6000NM0195 6TB 7200 RPM SAS Enterprise Hard Drive |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.79 inches | 5.79 inches | 4.00 inches | 4.00 inches |
| Depth | 4.00 inches | 4.00 inches | 4.00 inches | 5.79 inches | 5.79 inches |
| Weight | 1.5 lbs | 2.00 lbs | 1.85 lbs | 1.85 lbs | 1.8 lbs |
Reliable 960GB IronWolf 125 Pro. Excellent performance for mid-capacity NAS and professional servers daily.
Consistent SATA III speeds. High workload ratings make it ideal for high-traffic office environments.
Professional grade NAS storage. Stable performance and durable build for critical business data access.
Solid reliability and uptime. The 125 Pro series provides steady throughput for all users.
Exceptional endurance for network storage. Handles simultaneous requests with ease and professional stability.
Trustworthy 960GB SSD for NAS. A dependable choice for improving shared file access speeds.
Top-tier reliability and speed. Significantly reduces network latency for our collaborative workflow environments.
The IronWolf 125 Pro 960 GB SSD offers a 2.5″ SATA form factor, 6 Gbit/s interface, up to 545 MB/s sequential read speed, enterprise-grade endurance, and integrated NAS optimization for 24/7 operation.
The IronWolf 125 Pro 960 GB delivers up to 545 MB/s sequential read speed and up to 525 MB/s sequential write speed over a 6 Gbit/s SATA interface.
The IronWolf 125 Pro 960 GB SSD uses a standard SATA III interface at 6 Gbit/s for broad compatibility with NAS and server systems.
The IronWolf 125 Pro 960 GB SSD is built in a 2.5-inch, 7 mm slim form factor to fit most NAS enclosures, laptops, and desktops.
Yes, the IronWolf 125 Pro is optimized for compatibility with all major NAS vendors and supports multi-bay configurations for seamless integration.
The IronWolf 125 Pro 960 GB SSD features a high endurance rating of up to 1 400 TBW (terabytes written), ideal for write-intensive NAS environments.
The IronWolf 125 Pro comes with a 5-year limited warranty plus 3-year Rescue Data Recovery Services to protect against accidental data loss.
Designed for continuous operation, the IronWolf 125 Pro SSD delivers an MTBF of 2 000 000 hours and AgileArray® technology to maintain peak performance in 24/7 NAS workloads.
Yes, the IronWolf 125 Pro supports TRIM for sustained performance and S.M.A.R.T. for real-time health monitoring and predictive failure alerts.
The IronWolf 125 Pro SSD operates reliably between 0 °C and 70 °C, with a storage temperature range of –40 °C to 85 °C.
Simply mount the 2.5″ SSD into an available drive bay, connect the SATA data and power cables, then configure it via your NAS management interface.
Yes, the IronWolf 125 Pro is ideal for virtualization, database caching, and high-I/O workloads thanks to its low latency and high endurance.
The IronWolf 125 Pro operates at 4.9 W under active use and drops to 50 mW in DEVSLP power-saving mode for energy-efficient NAS performance.
With AgileArray® technology, IronWolf 125 Pro provides dual-plane balance control and RAID optimization to minimize vibration and maintain consistent performance in multi-drive NAS setups.
Yes, the IronWolf 125 Pro SSD is backward compatible with SATA II (3 Gbit/s) ports, although performance will be limited to the lower interface speed.
Seagate’s IronWolf Health Management and NAS vendor utilities allow you to monitor drive health, firmware updates, and receive alerts directly through your NAS dashboard.
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