MDD

MDD 18TB SAS 12G 7200RPM Enterprise

MDD18TSAS25672E
MDD Enterprisenearline18TBSAS-12G3.5"
No current price
newNot available
Price updated
Price accurate as of Oct 19, 2026, 12:00 AM
No current offer

The MDD 18TB SAS 12G 7200RPM Enterprise is a 18TB SAS-12G HDD in new condition. It has no current offer on Amazon. The in-stock alternatives nearest its capacity are listed below.

In stock instead - nearest to 18TB

6 in-stock listings · this listing has no current offer on Amazon · ranked by live cost per tb, refreshed about once a day

DriveCapacityInterfaceRecordingCondition$/TBPrice
WD Red Pro 20TB WD202KFGX
WD202KFGX
20TBSATA-6GCMRNEW$44.87$897Buy on Amazon
Seagate SkyHawk AI 16TB ST16000VE002
ST16000VE002
16TBSATA-6GCMRNEW$46.94$751Buy on Amazon
WD Ultrastar 20TB SATA WUH722020CLE6L4
WUH722020CLE6L4
20TBSATA-6G—NEW$49.95$999Buy on Amazon
WD Red Pro 16TB NAS16TBSATA-6G—NEW$59.05$945Buy on Amazon
Synology HAT5300 16TB NAS
HAT5300-16T
16TBSATA-6G—NEW$62.50$1000Buy on Amazon
WD Ultrastar 16TB SATA WUH722016CLE6L4
WUH722016CLE6L4
16TBSATA-6G—NEW$83.60$1338Buy on Amazon

Where this listing sits: every 18TB hard drive · 18TB SAS drives · MDD 18TB SAS — each page is the live ranking for that slice of the catalogue.

This drive is sold under the MDD (MaxDigitalData) label. Who is MDD? → — the trademark record, what the warranty covers, and the checks to run on arrival.

Before you buy: this is a SAS drive

SAS drives do not plug into a normal SATA motherboard port. You need a SAS host bus adapter or a backplane that speaks SAS - an LSI/Broadcom HBA in IT mode is the usual answer. A SATA drive will run on a SAS controller, but not the other way round. HBA and IT-mode guide

Same capacity, other options
DriveInterfaceCond$/TBPrice
WD Purple 18TB WD180PURZSATA-6GRefurb$28.33$510.00Buy on Amazon
MDD 18TB SATA 7200RPM NASSATA-6GRefurb$28.33$509.99Buy on Amazon
WD Ultrastar 18TB SATASATA-6GRefurb$33.33$599.99Buy on Amazon
WD Red Pro 18TB WD181KFGXSATA-6GRefurb$34.39$619.00Buy on Amazon

All 18TB drives we track, ranked by cost per terabyte.

Model context

CMR or SMR? What we can and cannot source for this part number

Part of the MDD line we track.

Quick Verdict

The MDD 18TB SAS 12G 7200RPM Enterprise is a 18TB SAS-12G enterprise drive - Verify recording technology before use in RAID. New unit with full manufacturer warranty.

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Specifications

Capacity18TB
Form Factor3.5"
InterfaceSAS-12G
Recording Tech—
RPM7200
Cache256MB
Sector Size512e
Workload Rating—
Warranty—
ASINB0C35RT3JC
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.

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 18TB drive we track →Cheapest per terabyte, all categories →Category price trends →

Also appears in

SAS hard drives
Other pages

Frequently Asked Questions

Not right now: Amazon shows no current offer for ASIN B0C35RT3JC. The in-stock alternatives nearest its 18TB capacity are on this page, ranked by live price.

This listing (MDD18TSAS25672E, ASIN B0C35RT3JC) carries no renewed, recertified, refurbished or pulled claim in its title, and Amazon reports it as new. On this site that is what "new" means: sold as factory-new.

Use Case Scenarios

🏠
Home & SMB NAS
Building a high-capacity NAS for media, backups and file sharing.
✓ Excellent fit
Verify CMR recording before using in RAID. New drives come with full warranty.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
18TB SAS drives are ideal for backup targets. Dual-port SAS suits dual-path backup infrastructure.
☁️
Object Storage / Cold Data Tier
High-density storage for MinIO, Ceph or Hadoop at scale.
✓ Excellent fit
At 18TB per drive, a 60-bay JBOD delivers 1080TB raw — enough for petabyte-scale object storage.

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 — takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX — full surface scan, takes 9 hours for 18TB. 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 MDD 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 18TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: HBA not initialized, SAS expander issue, cable fault, or incompatible controller.
Fix: Verify HBA firmware. Check SAS topology with sas2ircu or StorCLI. Test with known-good cable. Confirm drive is SAS not SATA.