Seagate

Seagate BarraCuda 4TB ST4000DMZ04

ST4000DMZ04
BarraCudadesktopSMR4TBSATA-6G3.5"
$48.99/TB
$195.95
newIn Stock
Price updated
Price accurate as of Sep 18, 2026, 01:30 AM
Buy on Amazon โ†’

The Seagate BarraCuda 4TB ST4000DMZ04 is a 4TB SATA-6G HDD in new condition. It is in stock at $195.95 - $48.99/TB.

Same capacity, other options
DriveInterfaceCond$/TBPrice
HP 695842-001 4TB SAS 6GSAS-6GNew$15.00$59.99Buy
Dell 012GYY 4TB SAS 6G RenewedSAS-6GRefurb$21.25$85.00Buy
Dell DRMYH Compellent 4TB NL SAS RenewedSAS-6GRefurb$22.50$89.98Buy
WD WD Purple 4TB WD40PURXSATA-6GRefurb$29.25$117.00Buy

All 4TB drives we track, ranked by cost per terabyte.

Model context

Part of the Seagate line we track.

Quick Verdict

The Seagate BarraCuda 4TB ST4000DMZ04 is a 4TB SATA-6G enterprise drive at $48.99/TB - Verify recording technology before use in RAID. New unit with full manufacturer warranty.

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Specifications

Capacity4TB
Form Factor3.5"
InterfaceSATA-6G
Recording TechSMR
RPM5400
Cache256MB
Sector Sizeโ€”
Workload Ratingโ€”
Warrantyโ€”
ASINB07D9C7SQH
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 36% of them (88 of 243). The cheapest we can currently buy is $14.99/TB; the middle of the market is $36.58/TB.

Where the wider market has moved

These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.

Compare against every 4TB drive we track โ†’Cheapest per terabyte, all categories โ†’Category price trends โ†’
How it compares - 4TB SATA-6G
#1WD WD Purple 4TB WD40PURX
$29.25/TB
#2WD WD Purple 4TB WD40PURX
$30.00/TB
#3WD Ultrastar 4TB SATA
$32.00/TB
#4Seagate IronWolf 4TB NAS ST4000VN006
$32.65/TB
#5Seagate SkyHawk 4TB ST4000VX007
$35.00/TB

Frequently Asked Questions

Check the recording technology before using in RAID. CMR is preferred over SMR for RAID arrays.

Warranty varies by seller. Check the Amazon listing for current warranty terms.

Compatible with any server, NAS or workstation with a SATA port. Works in Synology, QNAP, TrueNAS, UnRAID and all major NAS platforms.

Use Case Scenarios

๐Ÿ 
Home & SMB NAS
Building a mid-range NAS for media, backups and file sharing.
โœ“ Excellent fit
Verify CMR recording before using in RAID. New drives come with full warranty.
๐Ÿ’พ
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
โœ“ Excellent fit
4TB SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
๐Ÿ—๏ธ
Virtualization Host Storage
VM images and snapshots on Proxmox, VMware or Hyper-V.
~ Good fit
Suitable for VM storage where workloads are not IOPS-intensive. SATA is fine for single-host VM storage. Consider NVMe cache for latency-sensitive VMs.

Maintenance & Troubleshooting

Maintenance Checklist

On installCheck SMART baseline on arrival
Run smartctl -a /dev/sdX and record: Reallocated_Sector_Ct, Power_On_Hours, Spin_Retry_Count. Establishes baseline for future comparison.
MonthlyRun SMART short self-test
smartctl -t short /dev/sdX โ€” takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX โ€” full surface scan, takes 2 hours for 4TB. Any test failure is grounds for immediate replacement.
QuarterlyCheck RAID array health
Verify no degraded drives. A degraded array with no hot spare is one failure from data loss. Check mdstat or controller UI.
AnnuallyVerify drive firmware version
Check Seagate support site for firmware updates. Some versions have known bugs affecting integrity.
Every 3-5 yearsPlan proactive replacement
Enterprise HDDs have higher failure rates after year 4-5. At 4TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: Loose SATA data or power cable, failed port, or drive not spinning up.
Fix: Reseat both cables. Try a different port. Listen for spin-up sound. Test with a known-good cable.