Seagate IronWolf Pro, 20TB NAS Internal HDD –CMR 3.5 Inch SATA 6 Gb/s, 7,200 RPM, 256MB Cache for RAID Network Attached Storage, Rescue Services (ST20000NEZ00/000)
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Bottom line: The Seagate IronWolf Pro, 20TB NAS Internal HDD –CMR 3.5 Inch SATA 6 Gb/s, 7,200 RPM, 256MB Cache for RAID Network Attached Storage, Rescue Services (ST20000NEZ00/000) is a niche pick — read recent reviews before buying in the nas & home servers category, priced around $719.99. Read recent reviews carefully before committing.
Harness the power of IronWolf Pro 20TB HDDs, optimized for NAS, offering swift performance, high workload, and unsurpassed capacity to support your SMB. Built tough and always ready—with conventional magnetic recording technology (CMR) to store and protect crucial data and AgileArray firmware for exceptional RAID reliability and NAS compatibility—peace of mind is yours even during the heaviest workloads with 24x7 accessibility to store and protect crucial data, and a five-year limited warranty that includes three years of Rescue Data Recovery Services.
SpecPicks Verdict
SpecPicks classifies Seagate IronWolf Pro, 20TB NAS Internal HDD –CMR 3.5 Inch SATA 6… as a niche pick — read recent reviews before buying in the nas & home servers category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highest Performance: Easily tackle heavy workloads in multi-user NAS environments
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- AgileArray: CMR HDD with AgileArray—NAS-optimized firmware providing exceptional RAID reliability and NAS compatibility during the heaviest of workloads.date transfer rate:5000.0 megabytes_per_second.Average Operating Power (W) : 7.7W, Operating Temperature (ambient, min °C) : 0, Operating Temperature (drive reported, max °C) : 65.
- RV Mitigation: Enjoy consistent performance with built-in rotational vibration sensors providing reliable storage for NAS with little lag or down time
- Highest Performance: Easily tackle heavy workloads in multi-user NAS environments
- 300TB/Year User Workload Rate: Always on, 300TB/year user workload rate with 24x7 accessibility provides peace of mind while supporting the heaviest of multi-user workloads
- Warranty: Five-year limited product warranty protection plan and three year Rescue Data Recovery Services included
- The available storage capacity may vary.
Full Specifications
| Brand | Seagate |
|---|---|
| Color | Black |
| Warranty | Five-year limited product warranty protection plan and three year Rescue Data Recovery Services included |
| Model Name | IronWolf Pro |
| Read Speed | 250 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Form Factor | 3.5-inch |
| Model Number | ST20000NE000 |
| RV Mitigation | Enjoy consistent performance with built-in rotational vibration sensors providing reliable storage for NAS with little lag or down time |
| Built-In Media | IronWolf™ Pro 20TB SATA |
| Item Type Name | Hard Drive |
| Hard-Drive Size | 20 TB |
| Mfr Part Number | ST20000NE000 |
| Number of Items | 1 |
Ready to buy?
Seagate IronWolf Pro, 20TB NAS Internal HDD –CMR 3.5 Inch SATA 6 Gb/s, 7,200 RPM, 256MB Cache for RAID Network Attached Storage, Rescue Services (ST20000NEZ00/000) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.
Related NAS & Home Servers
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best 1440p Gaming GPUs in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
More reviews from the SpecPicks archive
Browse all reviews →- Loading Sega Genesis Games Off a Vinyl Record
- AMD Ryzen 7 7700X3D Lands as a Newegg Exclusive at $329
- Mystery N64 Cartridge Found in the Woods Boots Up
- Best Gaming Mouse Pad for Competitive FPS in 2026: 5 Picks Ranked by Glide, Tracking, and Sweat Resistance
- Best Budget Gaming Monitor Under $300 in 2026
- Self-Hosting Immich on a Raspberry Pi 4 8GB: Power and Performance
- 32GB of DDR5 Drops to $240 in New Newegg Build Bundles
- The Pentium III 1 GHz Race: When Intel and AMD Broke the Gigahertz Barrier in the Same Week
- Best Streaming Setup Gear for Beginners in 2026
- Best Force-Feedback Racing Wheel for PC in 2026: G29 vs HORI vs Thrustmaster
- Best CPU for AI Inference Workstations in 2026
- Raspberry Pi AI Module in 2026: Can a Pi + Hailo Run Local LLMs?
- Best Cooler for the Ryzen 7 5800X: Noctua NH-U12S vs ML240L
- Is an RTX 3060 Enough for 4K Gaming? Pairing It With a Budget 4K Monitor
- Sega Genesis Games Loaded Off a Vinyl Record — and What It Means for Retro Collectors
- Best Cooler for the Ryzen 7 5800X: Noctua NH-U12S vs Cooler Master ML240L
- 2000s LAN Party Modern Setup Guide: Hardware, Cables, and Server Stack in 2026
- Patch-to-Exploit in Hours: Why a Local Security LLM Rig Now Makes Sense
- Intel Arc B390 Handhelds vs Steam Deck: The Predator Atlas 8
- Sound BlasterX G6 on a Retro Windows XP Rig: USB Audio for Period-Correct Builds
- Best GPU for 1080p Esports in 2026: Why the RTX 3060 12GB Still Wins
- Is the RTX 3060 12GB Still Worth It for 1440p Gaming in 2026?
- Intel's Bartlett Lake Core 9 273PQE Loses to a 4-Year-Old CPU
- Intel Core Ultra 5 250K Plus vs Ryzen 5 7600X3D: The Mid-Range Faceoff