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Seagate IronWolf 525 500 GB Gen 4 M.2 SSD Review
Seagate IronWolf 525 500 GB Gen 4 M.2 SSD Review-February 2024
Feb 12, 2026 8:45 AM

Product Info

Seagate IronWolf 525 500 GB SSD

September 2021

Type

SSD

Price

$150 US

Seagate is one of the big names when it comes to the storage industry with products ranging from HDDs and SSDs (SATA & NVMe). The company has been steadily updating its IronWolf line of SSDs over several generations. The IronWolf series itself is aimed at consumers but also serves its good purposes within the prosumer segment. Last month, Seagate launched its brand new IronWolf 525 series NVMe SSDs which are Gen 4 compliant and also marketed towards NAS systems.

According to Seagate themselves, the IronWolf 525 NVMe series will offer all the key additions such as IronWolf Health Management System & Rescue Data Recovery services to reduce the probability of data loss on NAS systems. The drivers also going to be priced accordingly in the entry-level PCIe Gen 4 NVMe segment

Today, I will be testing the IronWolf 525 500 GB from Seagate which comes at a cost of just $149.99 US.

Seagate IronWolf 525 500 GB Gen 4 NVMe SSD

Seagate states that its IronWolf 525 series is an ideal choice for creative pros and businesses with demanding performance needs. It is Gen 4 compliant and backward compatible with PCIe Gen 3.

The SSDs are based on the NVMe SSD form factor and features a 96-layer Kioxia BiCS 3D TLC NAND flash which offers larger capacities, better performance, and slightly lower power input. Seagate is using the Phison E16 (PS5016-E16-32) SSD controller to power its IronWolf 525 series SSDs which is a Gen 4 compliant controller.

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FEATURES

Future-Proof Speed IronWolf 525 boosts NAS caching and tiered storage solutions to

the next level with PCIe Gen 4 speeds up to 5,000 MB/swhile maintaining backward

compatibility with PCIe Gen 3 systemsAlways-On, Always Accessible Designed to deliver performance in demanding 24x7 low latency, multi-user environments, enabling fast access to data any time, anywhere.Built Tough Endurance rating of 0.7 DWPD 2 ensures robust performance in NAS and other intensive client workloads.Class-Leading Reliability and Dependability Rated for 1.8M hours MTBF and includes a 5-year limited warranty for a best-in-class total cost of ownership (TCO). Purpose-Built Capacities Choose from 500 GB, 1 TB, and 2 TB, ideal for primary storage or fast cachingIronWolf Health Management (IHM)Actively monitor and protect your NAS data with error Prevention, Intervention, and Recovery recommendations.Peace of mind with Data Recovery Includes 3-year complimentary Rescue Dat

Furthermore, the SSD is priced relatively close to other options, starting at $150 US for the 500 GB, $250 US for the 1 TB, and $450 US for the 2 TB variants. In terms of performance, the IronWolf 525 500 GB has sequential read speeds of 5000 MB/s and write speeds of 2500 MB/s. The Random read speeds of the drive are up to 420K IOPS and the write is 630K IOPS. The SSDs are powered through the NVMe slot with a 3.3V DC supply.

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The endurance of the SSD is rated at 1,800,000 hours which should last a good amount of time. You are also looking at a 5-year limited warranty through the entire lineup.

Seagate IronWolf 525 Gen 4 NVMe SSD Specifications:

Capacity 500 GB 1 TB 2TB
Model Number ZP500NM30002 ZP1000NM30002 ZP2000NM30002
Controller Phison E16
NAND Flash Kioxia BiCS 4 96L 3D TLC NAND
Form-Factor, Interface M.2-2280, PCIe 4.0 x4, NVMe 1.3
Double-Sided
(22.15mm x 80.15mm x 3.58mm)
Seq. Read (128KB @ QD32) [ Normal / Sustained @ PCIe 4.0 x4 ] 5000 / 3300 MBps 5000 / 4350 MBps 5000 / 4300 MBps
Seq. Write (128KB @ QD32) [ Normal / Sustained @ PCIe 4.0 x4 ] 2500 / 525 MBps 4400 / 995 MBps 4400 / 965 MBps
Rand. Read IOPS (QD32T8) [ Normal @ PCIe 4.0 x4 ] 420K 760K 740K
Rand. Write IOPS (QD32T8) [ Normal @ PCIe 4.0 x4 ] 630K 700K 700K
Pseudo-SLC Caching Yes
DRAM Buffer 1GB DDR4 2GB DDR4
TCG Opal Encryption No
Power Consumption Avg Active 5.6 W 6.5 W
Avg Sleep 20mW 20mW 30mW
Warranty 5 years (including 3 years of Rescue Data Recovery Services)
MTBF 1.8 million hours
TBW 700 1400 2800
DWPD 0.7
UBER 1E10^16
Additional Information IronWolf 525 SSD Specifications
MSRP $150 US $250 US $450 US

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