DatacenterDisk

HGST HUS724030ALA640 vs MDD 3TB

Side-by-side spec and price comparison. Live data from Amazon US.

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Our Recommendation
👑
MDD 3TB SATA 6G 7200RPM Enterprise

MDD 3TB SATA 6G 7200RPM Enterprise offers the best value at $33.33/TB. As a refurb unit, verify SMART data on arrival.

Best $/TB: MDD
Best Warranty: MDD
Best for RAID: MDD
Full Specification Comparison
Spec
HGST
HUS724030ALA640 3TB SATA Enterprise
$73.33/TB
MDD
3TB SATA 6G 7200RPM Enterprise
$33.33/TB
Brand
HGST
MDD
Model
HUS724030ALA640 3TB SATA Enterprise
3TB SATA 6G 7200RPM Enterprise
Series
Ultrastar
MDD Enterprise
Part Number
HUS724030ALA640
MDD3TSATA6472E
$/TB
$73.33
👑$33.33
Price
$220.00
$99.99
Condition
New
Refurb
Capacity
3TB
3TB
Interface
SATA-6G
SATA-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
CMR
RPM
7,200
7,200
Cache
—
64MB
Sector Size
512n
512n
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
—
—
Workload Tier
nearline
nearline
In Stock
✓ In Stock
✓ In Stock
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
HGST
MDD
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●
●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose HGST HUS724030ALA640 3TB SATA Enterprise if:
  • ✓ You need new-with-warranty for compliance or budgeting
Buy HGST →
Choose MDD 3TB SATA 6G 7200RPM Enterprise if:
  • ✓ You need maximum storage per dollar
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You're comfortable with datacenter refurb to maximize savings
Buy MDD →

Frequently Asked Questions

MDD 3TB offers better value at $33.33/TB vs $73.33/TB - a 55% price difference. Factor in warranty length and workload rating when the price gap is small.

Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.

Both drives carry similar warranty terms and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.

HGST HUS724030ALA640 is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SATA interface is compatible with all NAS platforms including Synology, QNAP and TrueNAS.