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ZA240NX1A001
IronWolf 125 Pro - 240 GB - 2.5" - 545 MB/s - 6 Gbit/s
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ZA240NX1A001 is an 8 TB HDD designed in a 3.5-inch form factor, equipped with a SATA III interface and a reliable 7200 RPM spindle speed. It features a 256 MB cache, an annual workload rating of 550 TB/yr, and an MTBF of 2,000,000 hours with a rated reliability of 8760 hours/year.
Engineered for enterprise storage environments, ZA240NX1A001 offers advanced features including helium-sealed construction, vibration protection, and dual actuator technology. This drive is ideal for data centers, desktops, NAS, and surveillance systems with efficient power consumption of 8 Watts during read/write operations and 6 Watts when idle.
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 ZA240NX1A001 |  ST12000VN0008 |  ST1000VX005 |  ST300MP0006 |  ST6000NM003A | |
|---|---|---|---|---|---|
| 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 | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 12 TB | 1 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 | 64 MB | 64 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 210 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 8 Watts | 8.9 Watts | 8.0 Watts | 8 Watts | 9.0 Watts |
| Power Consumption (Idle) | 6 Watts | 5.7 Watts | 6.0 Watts | 6 Watts | 6.0 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | No | No | No |
| 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 | Dual Actuator | Dual Actuator | Rotational Vibration Sensors |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | ZA240NX1A001 | ST12000VN0008 | ST1000VX005 1TB Enterprise HDD | ST300MP0006 | ST6000NM003A 6TB Enterprise SATA III HDD |
| Height | 1.0 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.8 inches | 4.00 inches | 4.00 inches | 5.79 inches | 4.00 inches |
| Depth | 4.0 inches | 5.78 inches | 5.79 inches | 4.01 inches | 5.79 inches |
| Weight | 1.8 lbs | 1.90 lbs | 1.80 lbs | 2.1 lbs | 1.2 lbs |
Reliable 240GB IronWolf 125 Pro. Perfect for professional NAS storage and 24/7 reliability.
Consistent SATA speeds for NAS. High endurance ratings make it ideal for multi-user server access.
Solid performance for network storage. Provides the stability and speed our small business NAS requires.
Professional grade NAS SSD. Durable build and steady transfer rates for critical business data.
Excellent uptime and data protection. The 125 Pro series is a trustworthy choice for NAS.
Dependable and fast. Significantly improves the performance of our network storage compared to HDDs.
Top-tier reliability for 240GB. Ideal for NAS operating systems or high-traffic network storage caching.
The IronWolf 125 Pro SSD offers 240 GB of storage in a 2.5-inch, 7 mm slim form factor, ideal for tight NAS and server bays.
It uses a SATA III 6 Gbit/s interface with sequential read speeds up to 545 MB/s and write speeds up to 525 MB/s.
Yes, it features AgileArray technology, optimized for RAID performance, multi-user workload handling, and minimal power consumption in NAS systems.
It delivers 600 TBW endurance, a 1.8 million-hour MTBF, and sustained performance for 24/7 multi-user environments.