---
product_id: 548101169
title: "Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01)"
brand: "seagate"
price: "¥208411"
currency: JPY
in_stock: true
reviews_count: 8
category: "Seagate"
url: https://www.desertcart.jp/products/548101169-seagate-ironwolf-pro-20tb-enterprise-internal-nas-hdd-cmr-3
store_origin: JP
region: Japan
---

# 7200 RPM blazing speed 20TB massive capacity 3-year Rescue Data Recovery Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01)

**Brand:** seagate
**Price:** ¥208411
**Availability:** ✅ In Stock

## Summary

> 💼 Power your NAS like a pro — storage that works as hard as you do.

## Quick Answers

- **What is this?** Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01) by seagate
- **How much does it cost?** ¥208411 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/548101169-seagate-ironwolf-pro-20tb-enterprise-internal-nas-hdd-cmr-3)

## Best For

- seagate enthusiasts

## Why This Product

- Trusted seagate brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Massive 20TB Storage:** Store your entire digital empire without compromise.
- • **Enterprise-Grade 7200 RPM:** Consistent high-speed performance for demanding NAS workloads.
- • **Peace of Mind Data Rescue:** Complimentary 3-year recovery service keeps your data safe.
- • **IronWolf Health Management:** Proactive system health monitoring to prevent downtime.
- • **Rock-Solid RAID Optimization:** CMR tech + AgileArray ensures flawless multi-bay reliability.

## Overview

The Seagate IronWolf Pro 20TB is a high-capacity, enterprise-grade internal NAS hard drive designed for 24/7 performance with 7200 RPM speed, 256MB cache, and SATA 6Gb/s interface. Engineered with CMR technology and AgileArray features, it delivers optimized RAID reliability and vibration management for multi-bay NAS environments. Backed by a 5-year warranty and 3 years of complimentary Rescue Data Recovery Services, it offers unmatched dependability and peace of mind for professional and small business users.

## Description

Buy

Review: A beast of a drive – loud, but rock solid reliability - If you are building a NAS or upgrading your home server, you probably already know that IronWolf Pros are the gold standard. I popped this 8TB into my bay and it was recognised instantly. The key thing here is that it’s a CMR drive (not SMR), which is vital if you care about your data integrity in a RAID setup. The transfer speeds are consistently high and it feels bulletproof. Just a heads up: These are Enterprise-grade drives, which means they are designed for performance, not silence. You will hear the familiar "chugging/clicking" noise when it’s writing data. It doesn't bother me—it actually reassures me it's working—but don't expect it to be silent like a standard desktop drive. Expensive, but worth it for the peace of mind.
Review: Fast (As mechanical Drives Go - That Is)... and ideal for Synology NAS Devices. - I bought the Seagate IronWolf Pro 16TB for my NAS setup, and it's exactly what I needed—reliable, spacious, and enterprise-grade through and through. First off, 16TB of storage is a glorious amount of space. I’ve loaded mine with Plex media, backups, and surveillance recordings, and still have room to breathe. This is proper CMR technology (not the dodgy SMR stuff), which is a must for RAID performance and data integrity. The 7200 RPM speed and 256MB cache make a noticeable difference, especially in multi-user environments. Transfers are fast, consistent, and there's no lag when indexing large volumes of data. It runs smoothly in my Synology NAS with zero fuss. Noise and vibration levels are surprisingly reasonable for such a large-capacity drive. It’s not silent (it’s spinning 7,200 RPM after all), but Seagate’s vibration dampening tech is doing its job well. Temps stay in check too. Bonus points for: RAID optimization – it just works Data Rescue Services included – peace of mind in case disaster strikes Frustration-Free Packaging – arrived safely, minimal waste, no nonsense Final thoughts: If you're serious about long-term storage, RAID setups, or just want a rock-solid drive that won’t blink under pressure, the IronWolf Pro series is well worth the investment. Yes, it’s not cheap—but this isn’t your bargain-bin hard drive. It’s a heavy-duty workhorse made for people who care about their data. Highly recommended for NAS users, small business setups, or any data hoarder with standards.

## Features

- High Performance: All-CMR (conventional magnetic recording) portfolio enables consistent, industry-leading 24×7 performance allowing users to access data anytime, anywhere
- Class-Leading Dependability: Up to 550 TB/year workload rating, 2.5M hours MTBF, and 5-year limited warranty for unparalleled total cost of ownership (TCO)
- Peace of Mind with Data Recovery: Complimentary 3 year Rescue Data Recovery Services for a hassle-free, zero-cost data recovery experience
- IronWolf Health Management: Helps protect data with prevention, intervention, and recovery recommendations to ensure peak system health
- Optimised for NAS: AgileArray with dual-plane balancing, time-limited error recovery (TLER), and rotational vibration (RV) sensors to deliver top RAID performance in multi-bay environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B94KG3J9 |
| Best Sellers Rank | 443 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1 in Internal Hard Drives |
| Box Contents | IronWolf Pro HDD 20 TB, The actual capacity may vary. |
| Brand | Seagate |
| Brand Name | Seagate |
| Cache Memory Installed Size | 256 |
| Color | NAS HDD PRO |
| Compatible Devices | Desktop, Laptop, NAS |
| Connectivity technology | SATA |
| Country of Origin | Thailand |
| Customer Package Type | Retail Packaging or Premium Packaging |
| Customer Reviews | 4.5 out of 5 stars 710 Reviews |
| Data Transfer Rate | 480 Megabits Per Second |
| Digital Storage Capacity | 2 TB |
| Digital storage capacity | 2 TB |
| EU Spare Part Availability Duration | 5 Years |
| Enclosure Material | Aluminum/Glass |
| Form Factor | 3.5-inch |
| Global Trade Identification Number | 10763649177065 |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 Inches |
| Hard Disk Interface | Serial ATA |
| Hard Disk Rotational Speed | 7200 RPM |
| Hard disk form factor | 3.5 Inches |
| Hard disk interface | Serial ATA |
| Hard-Drive Size | 20 TB |
| Hardware Connectivity | SATA 6.0 Gb/s, USB |
| Installation Type | Internal Hard Drive |
| Item Type Name | IronWolf Pro Refresh |
| Item Weight | 690 Grams |
| Manufacturer | Seagate |
| Media Speed | 285 Mo/s |
| Model Name | IronWolf Pro |
| Model Number | ST20000NTZ01 |
| Network Connectivity Technology | SATA |
| Number of Items | 1 |
| Product Features | Portable |
| Product Warranty | 3 year manufacturer |
| Read Speed | 180 Megabytes Per Second |
| Special feature | Portable |
| Specific Uses For Product | Business |
| UPC | 763649177068 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Seagate
- **Colour:** NAS HDD PRO
- **Compatible devices:** Desktop, Laptop, NAS
- **Connectivity technology:** SATA
- **Digital storage capacity:** 2 TB
- **Hard disk description:** Mechanical Hard Disk
- **Hard disk form factor:** 3.5 Inches
- **Hard disk interface:** Serial ATA
- **Installation type:** Internal Hard Drive
- **Special feature:** Portable

## Images

![Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01) - Image 1](https://m.media-amazon.com/images/I/716AoRMZpEL.jpg)
![Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01) - Image 2](https://m.media-amazon.com/images/I/81+p-QvqCnL.jpg)
![Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01) - Image 3](https://m.media-amazon.com/images/I/814+AZiC7tL.jpg)
![Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01) - Image 4](https://m.media-amazon.com/images/I/71MQgLRhB7L.jpg)
![Seagate IronWolf Pro 20TB, Enterprise Internal NAS HDD, CMR 3.5 Inch, SATA 6GB/s, 7.200 RPM, 256MB Cache for RAID NAS, Rescue Services - Frustration Free Packaging (ST20000NTZ01) - Image 5](https://m.media-amazon.com/images/I/71m1v39uloL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A beast of a drive – loud, but rock solid reliability
*by L***R on 27 November 2025*

If you are building a NAS or upgrading your home server, you probably already know that IronWolf Pros are the gold standard. I popped this 8TB into my bay and it was recognised instantly. The key thing here is that it’s a CMR drive (not SMR), which is vital if you care about your data integrity in a RAID setup. The transfer speeds are consistently high and it feels bulletproof. Just a heads up: These are Enterprise-grade drives, which means they are designed for performance, not silence. You will hear the familiar "chugging/clicking" noise when it’s writing data. It doesn't bother me—it actually reassures me it's working—but don't expect it to be silent like a standard desktop drive. Expensive, but worth it for the peace of mind.

### ⭐⭐⭐⭐⭐ Fast (As mechanical Drives Go - That Is)... and ideal for Synology NAS Devices.
*by R***. on 12 June 2025*

I bought the Seagate IronWolf Pro 16TB for my NAS setup, and it's exactly what I needed—reliable, spacious, and enterprise-grade through and through. First off, 16TB of storage is a glorious amount of space. I’ve loaded mine with Plex media, backups, and surveillance recordings, and still have room to breathe. This is proper CMR technology (not the dodgy SMR stuff), which is a must for RAID performance and data integrity. The 7200 RPM speed and 256MB cache make a noticeable difference, especially in multi-user environments. Transfers are fast, consistent, and there's no lag when indexing large volumes of data. It runs smoothly in my Synology NAS with zero fuss. Noise and vibration levels are surprisingly reasonable for such a large-capacity drive. It’s not silent (it’s spinning 7,200 RPM after all), but Seagate’s vibration dampening tech is doing its job well. Temps stay in check too. Bonus points for: RAID optimization – it just works Data Rescue Services included – peace of mind in case disaster strikes Frustration-Free Packaging – arrived safely, minimal waste, no nonsense Final thoughts: If you're serious about long-term storage, RAID setups, or just want a rock-solid drive that won’t blink under pressure, the IronWolf Pro series is well worth the investment. Yes, it’s not cheap—but this isn’t your bargain-bin hard drive. It’s a heavy-duty workhorse made for people who care about their data. Highly recommended for NAS users, small business setups, or any data hoarder with standards.

### ⭐⭐⭐⭐⭐ Gets five stars for a balance of value for money and functionality
*by G***E on 10 February 2026*

Excellent performance and ease of installation (push fit SATA plugs). Slightly noisy but acceptable for a spinning HDD. This is 7200 rpm, so faster access. The device is recognised easily in Windows Device Manager. I went for 4TB but many storage capacities are available. I have used Seagate since the early days of PC / Windows, so over 30 years, have never been let down. I bought this as a back storage internal drive for my new PC project. Robust and reliable and very well made.

## Frequently Bought Together

- Seagate IronWolf, Pro 2TB, Enterprise Internal NAS HDD – CMR 3.5 Inch, SATA 6GB/s, 7,200 RPM, 256 MB Cache for RAID NAS - Frustration Free Packaging (ST2000NTZ01)
- Synology 2-Bay DiskStation DS224+ (Diskless)
- Seagate BarraCuda 8TB Internal Hard Drive HDD – 3.5 Inch Sata 6 Gb/s 5400 RPM 256MB Cache for Computer Desktop PC (ST8000DMZ04/004)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-26*