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ZA1920NX1A001
IronWolf 125 Pro - 1920 GB - 2.5" - 545 MB/s - 6 Gbit/s
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ZA1920NX1A001 is a high-performance HDD designed in a 3.5-inch form factor that supports SATA III connectivity. It delivers a robust 7200 RPM spindle speed paired with an 8 TB storage capacity and a 256 MB cache, ensuring reliable data processing for critical workloads.
Engineered for demanding applications such as data centers, desktops, NAS, and surveillance systems, this drive offers an annual workload rating of 550 TB/yr and features enterprise-grade reliability with a typical MTBF of 2,000,000 hours. With optimized power consumption for both read/write (8 Watts) and idle conditions (6 Watts), advanced helium-sealed construction, vibration protection, and dual actuator technology, the ZA1920NX1A001 is built to excel in mission-critical environments.
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| ZA1920NX1A001 |  ST1000NX0333 |  ST4000VX007 |  ST14000NM001G |  ST300MP0106 | |
|---|---|---|---|---|---|
| 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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SAS 6Gb/s | SAS 12Gb/s | SAS 12Gb/s | SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 1 TB | 4 TB | 14 TB | 300 GB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 64 MB | 128 MB | 256 MB | 64 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 210 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 300 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8.5 Watts | 8.9 Watts | 9 Watts | 8 Watts |
| Power Consumption (Idle) | 6 Watts | 6.0 Watts | 5.2 Watts | 6 Watts | 6 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 | No |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Rotational Vibration Sensors | Rotational Vibration Sensors | Dual Actuator | Rotational Vibration Sensors |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–55°C |
| Product Name | ZA1920NX1A001 Enterprise HDD | ST1000NX0333 Enterprise Capacity 1TB HDD | Seagate Exos ST4000VX007 | ST14000NM001G | ST300MP0106 |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.04 inches |
| Width | 5.8 inches | 5.79 inches | 5.79 inches | 4.0 inches | 5.79 inches |
| Depth | 4.0 inches | 4.01 inches | 4.01 inches | 5.79 inches | 4.00 inches |
| Weight | 1.2 lbs | 2.2 lbs | 2.27 lbs | 1.95 lbs | 1.2 lbs |
Spacious 1.92TB IronWolf 125 Pro. Superior performance for high-capacity NAS and multi-user environments.
Exceptional reliability and throughput. Built for 24/7 network storage with professional-grade workload ratings.
Consistent 545 MB/s speeds. The 1920GB capacity is perfect for shared creative project files.
Robust and efficient NAS SSD. Handles intensive network traffic with complete stability and speed.
Top-tier durability for business servers. A dependable choice for expanding professional network storage arrays.
Outstanding performance for multi-bay systems. AgileArray support ensures smooth operation in our 8-bay NAS.
Superior reliability for critical data. These drives are the heart of our high-speed server array.
The Seagate IronWolf 125 Pro SSD provides 1920 GB of high-performance flash storage, ensuring ample space for intensive NAS applications and large multimedia libraries.
The IronWolf 125 Pro delivers sequential read speeds up to 545 MB/s and write speeds up to 520 MB/s over a SATA III 6 Gbit/s interface for fast data transfers.
This SSD uses a SATA III 6 Gbit/s interface in a 2.5-inch, 7 mm height form factor, compatible with standard laptop and NAS drive bays.
Yes, the IronWolf 125 Pro is purpose-built for multi-user NAS applications, offering optimized firmware, sustained performance and 24/7 reliability under heavy workloads.
The IronWolf 125 Pro boasts an endurance rating up to 1,200 TBW (terabytes written), supporting intensive read/write cycles in enterprise and NAS environments.
Yes, it features integrated power-loss protection to complete in-flight writes, safeguarding data integrity during unexpected power failures.
The IronWolf 125 Pro SSD has an MTBF rating of 2 million hours, reflecting high durability and reliable long-term operation.
Seagate backs the IronWolf 125 Pro with a 5-year limited warranty and complimentary Rescue Data Recovery Services for added peace of mind.
Yes, simply mount the 2.5″ drive in an available SATA III 6 Gbit/s bay and secure with standard drive screws—no additional drivers are required.
The SSD is validated across leading NAS platforms including Synology, QNAP, Asustor and ReadyNAS, ensuring seamless integration and firmware support.
The Pro variant offers higher endurance, extended 5-year warranty, enhanced firmware optimizations and Rescue Services compared to the standard IronWolf model.
It excels in multi-user NAS environments, virtualized applications, media streaming and high-transaction database workloads requiring consistent low latency.
Yes, it includes S.M.A.R.T. monitoring and IronWolf Health Management tools to track drive health and proactively prevent data loss.
The SSD operates reliably between 0 °C and 70 °C, making it suitable for both home and business NAS systems in varied environments.
Absolutely. Its high endurance and low latency make it ideal for read/write caching in NAS setups, significantly boosting system responsiveness.
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