DatacenterDisk

MDD 3TB vs Seagate 3TB

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

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Our Recommendation
👑
MDD 3TB SAS 6G 7200RPM

MDD 3TB SAS 6G 7200RPM wins on both price ($11.33/TB) and warranty (5 years).

Best $/TB: MDD
Best Warranty: MDD
Best for RAID: Seagate
Full Specification Comparison
Spec
MDD
3TB SAS 6G 7200RPM
$11.33/TB
Seagate
3TB Enterprise Capacity SAS 6G
$17.49/TB
Brand
MDD
Seagate
Model
3TB SAS 6G 7200RPM
3TB Enterprise Capacity SAS 6G
Series
MDD Enterprise
Enterprise Capacity
Part Number
MD3TSAS12872E
ST3000NM0023
$/TB
👑$11.33
$17.49
Price
$33.99
$52.47
Condition
New
New
Capacity
3TB
3TB
Interface
SAS-6G
SAS-6G
Form Factor
3.5"
3.5"
Drive Type
HDD
HDD
Recording Tech
CMR
CMR
RPM
7,200
7,200
Cache
128MB
128MB
Sector Size
512n
512n
Workload Rating
—
550TB/yr
DWPD
N/A
N/A
Warranty
5 years
—
Workload Tier
nearline
nearline
In Stock
✓ In Stock
✓ In Stock
Buy
Buy on Amazon →
Buy on Amazon →
Workload Fit
Workload
MDD
Seagate
NAS Storage
●●
●●
Backup Target
●●●
●●●
OLTP Database
●
●
Cold Archive
●
●
Virtualization
●
●
AI/ML Storage
●
●
Buying Recommendation
Choose MDD 3TB SAS 6G 7200RPM if:
  • ✓ You need maximum storage per dollar
  • ✓ You need 5-year warranty coverage for production
  • ✓ You need new-with-warranty for compliance or budgeting
Buy MDD →
Choose Seagate 3TB Enterprise Capacity SAS 6G if:
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ Your server runs 24/7 under heavy sustained load
  • ✓ You need new-with-warranty for compliance or budgeting
Buy Seagate →

Frequently Asked Questions

MDD 3TB offers better value at $11.33/TB vs $17.49/TB - a 35% 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.

MDD 3TB carries a longer 5-year warranty vs unknown years for Seagate 3TB. Longer warranty typically correlates with manufacturer confidence in reliability.

MDD 3TB is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SAS interface requires a SAS HBA or SAS-capable NAS.