---
product_id: 287128927
title: "IronWolf Pro, 20TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6GB/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)"
brand: "seagate"
price: "¥53534"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/287128927-ironwolf-pro-20tb-enterprise-nas-internal-hdd-cmr-3-5
store_origin: JP
region: Japan
---

# 7200 RPM high-speed rotation 20TB massive capacity SATA 6GB/s ultra-fast interface IronWolf Pro, 20TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6GB/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)

**Brand:** seagate
**Price:** ¥53534
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your NAS game with IronWolf Pro — storage that works as hard as you do.

## Quick Answers

- **What is this?** IronWolf Pro, 20TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6GB/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001) by seagate
- **How much does it cost?** ¥53534 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/287128927-ironwolf-pro-20tb-enterprise-nas-internal-hdd-cmr-3-5)

## 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

- • **Optimized for RAID:** CMR technology combined with NAS-optimized firmware guarantees data integrity and smooth RAID compatibility.
- • **Massive 20TB Storage:** Store your entire digital universe with enterprise-grade capacity designed for demanding NAS environments.
- • **Blazing 7200 RPM Speed:** Experience rapid data access and transfer speeds that keep your workflow seamless and efficient.
- • **Unmatched NAS Reliability:** AgileArray firmware ensures rock-solid RAID performance under heavy multi-user workloads.
- • **Vibration-Resistant Design:** Built-in rotational vibration sensors minimize lag and downtime, perfect for busy network storage.

## Overview

The Seagate IronWolf Pro 20TB is a 3.5-inch enterprise-grade internal HDD designed specifically for NAS systems. Featuring AgileArray firmware, 7200 RPM rotational speed, and a SATA 6GB/s interface, it delivers exceptional RAID reliability, high performance, and vibration resistance to handle heavy multi-user workloads with minimal downtime.

## Description

Seagate IronWolf Pro ST4000NE001 Hard Drive 3.5 Inches 4000 GB Serial ATA III - Hard Drives (3.5 Inches, 4000 GB, 7200 RPM)

Review: I use it with my synology drive - So far so good
Review: Horrible packaging, ordered 4, 1 failed SMART test, 2 made clicking noises - Returning my disks because they arrived damaged. The seller sent them wrapped in JUST 1 LAYER of bubble wrap. The items were not marked as fragile and delivery personnel dropped the disks on my door mat during delivery. 1 of the HDD failed the SMART test and made loud clicking noises when powered up. 2 of the drives made faint clicking sounds and had very high read error rate. The last disk seemed healthy but given the other 3 disks I did not want to take a chance. Returning all the disks Seller should package fragile things like HDD's more responsibly and provide added protection for transit. Very disappointed.

## Features

- AgileArray: CMR HDD with AgileArray — NAS-optimised firmware providing exceptional RAID reliability and NAS compatibility during the heaviest of workloads
- Enjoy consistent performance with built-in rotational vibration sensors providing reliable storage for NAS with little lag or downtime
- Highest Performance: Easily tackle heavy workloads in multi-user NAS environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SY4T6F5 |
| Additional Features | Portable |
| Best Sellers Rank | #2,127 in Computers ( See Top 100 in Computers ) #3 in Internal Hard Drives |
| Brand | Seagate |
| Built-In Media | Hard Drive |
| Cache Memory Installed Size | 128 |
| Color | HDD |
| Compatible Devices | Storage System |
| Connectivity Technology | SATA |
| Connectivity technology | SATA |
| Customer Reviews | 4.0 out of 5 stars 4,711 Reviews |
| Data Transfer Rate | 6 Gigabits Per Second |
| Digital Storage Capacity | 4 TB |
| Digital storage capacity | 4 TB |
| Enclosure Material | Metal |
| Form Factor | 3.5-inch |
| Global Trade Identification Number | 00763649125137, 08719706009881 |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 Inches |
| Hard Disk Interface | SATA 6 GB/s |
| Hard Disk Rotational Speed | 7200 RPM |
| Hard disk form factor | 3.5 Inches |
| Hard disk interface | SATA 6 GB/s |
| Hard-Drive Size | 20 TB |
| Hardware Connectivity | SATA 6.0 Gb/s |
| Installation Type | Internal Hard Drive |
| Item Type Name | Hard Drive |
| Item Weight | 1.4 Pounds |
| Manufacturer | Otom Oto Tekstili ve Aksesuarlari San. Tic. Ltd. |
| Media Speed | 120 MB/s |
| Model Name | IronWolf Pro |
| Model Number | ST4000NE001 |
| Number of Items | 1 |
| Read Speed | 120 Megabytes Per Second |
| Special features | Portable |
| Specific Uses For Product | Business |
| UPC | 763649125137 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Seagate
- **Colour:** HDD
- **Compatible devices:** Storage System
- **Connectivity technology:** SATA
- **Digital storage capacity:** 4 TB
- **Hard disk description:** Mechanical Hard Disk
- **Hard disk form factor:** 3.5 Inches
- **Hard disk interface:** SATA 6 GB/s
- **Installation type:** Internal Hard Drive
- **Special features:** Portable

## Images

![IronWolf Pro, 20TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6GB/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001) - Image 1](https://m.media-amazon.com/images/I/51mCDa7HuRL.jpg)

## Available Options

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

## Questions & Answers

**Q: what is the cache size?**
A: It depends on exactly what model you have. Mind is a ST4000NE001 that spins at 7200rpm and has a 256MB Cache. Other models spin at 5400 rom and have 64 MB Cache,

## Customer Reviews

### ⭐⭐⭐⭐⭐ I use it with my synology drive
*by A***N on 17 September 2023*

So far so good

### ⭐ Horrible packaging, ordered 4, 1 failed SMART test, 2 made clicking noises
*by H***. on 7 August 2023*

Returning my disks because they arrived damaged. The seller sent them wrapped in JUST 1 LAYER of bubble wrap. The items were not marked as fragile and delivery personnel dropped the disks on my door mat during delivery. 1 of the HDD failed the SMART test and made loud clicking noises when powered up. 2 of the drives made faint clicking sounds and had very high read error rate. The last disk seemed healthy but given the other 3 disks I did not want to take a chance. Returning all the disks Seller should package fragile things like HDD's more responsibly and provide added protection for transit. Very disappointed.

### ⭐⭐⭐⭐ It's is noisy
*by S***H on 25 February 2026*

Hard disk is working fine but noisy

## Frequently Bought Together

- Seagate IronWolf Pro ST4000NE001 4 TB Hard Drive - 3.5" Internal - SATA (SATA/600)
- Corsair RM750e (2023) Fully Modular Low-Noise Power Supply - ATX 3.0 & PCIe 5.0 Compliant - 105°C-Rated Capacitors - 80 Plus Gold Efficiency - Modern Standby Support - Black
- SAMSUNG 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM

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**Shop now:** [https://www.desertcart.jp/products/287128927-ironwolf-pro-20tb-enterprise-nas-internal-hdd-cmr-3-5](https://www.desertcart.jp/products/287128927-ironwolf-pro-20tb-enterprise-nas-internal-hdd-cmr-3-5)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*