DatacenterDisk
Synology

Synology DiskStation DS425+ 4-Bay Diskless

DS425+
DiskStationnas-device0TB2.5GbEDesktop
$593.00
newIn Stock
Price updated
Price accurate as of Sep 3, 2026, 01:31 PM
Buy on Amazon β†’

The Synology DiskStation DS425+ 4-Bay Diskless is a 0TB 2.5GbE NAS-Device in new condition. It is in stock at $593.00.

Model context

Part of the Synology line we track.

Quick Verdict

The Synology DiskStation DS425+ 4-Bay Diskless is a 0TB 2.5GbE enterprise drive at $undefined/TB - Verify recording technology before use in RAID. New unit with full 3-year warranty.

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Specifications

Capacity0TB
Form FactorDesktop
Interface2.5GbE
Recording Techβ€”
Sector Sizeβ€”
Workload Ratingβ€”
Warranty3 years
ASINB0F895RV3K
Market context

We do not have enough in-stock comparators of this type today to place this price against the rest of the market. The category page below ranks everything we do have.

Compare against every drive we track β†’Cheapest per terabyte, all categories β†’
How it compares - 0TB 2.5GbE
#1Synology DiskStation DS425+ 4-Bay DisklessTHIS DRIVE
$β€”/TB
#2UGREEN NASync DH2300 2-Bay
$β€”/TB
#3UGREEN NASync DXP2800 2-Bay
$β€”/TB
#4TerraMaster F4-424 Pro 4-Bay
$β€”/TB
#5Synology DiskStation DS925+ 4-Bay
$β€”/TB

Compare to similar 0TB 2.5GbE drives

UGREEN
NASync DH2300 2-Bay
$β€”/TB
$227.99
new
UGREEN
NASync DXP2800 2-Bay
$β€”/TB
$380.10
new
TerraMaster
F4-424 Pro 4-Bay
$β€”/TB
$644.99
new
Synology
DiskStation DS925+ 4-Bay
$β€”/TB
$659.97
REFURB
Synology
DiskStation DS925+ 4-Bay
$β€”/TB
$748.69
new

Frequently Asked Questions

This 2.5GbE cartridge requires a compatible 2.5GbE tape drive. 2.5GbE drives can also read the previous LTO generation.

BaFe (Barium Ferrite) tape media has an archival life of 30+ years when stored in controlled conditions (18-26Β°C, 20-50% humidity). Store tapes vertically and avoid magnetic fields.

Yes. LTO is an open standard. This cartridge works in any 2.5GbE-compatible standalone drive or automated tape library regardless of manufacturer.

Use Case Scenarios

🏠
Home & SMB NAS
Building a mid-range NAS for media, backups and file sharing.
~ Good fit
Verify CMR recording before using in RAID. New drives come with full warranty.
πŸ’Ύ
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
βœ“ Excellent fit
0TB SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
πŸ—οΈ
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 β€” takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX β€” full surface scan, takes 0 hours for 0TB. 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 Synology 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 0TB 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.