Seagate 250GB 3.5" SATA vs Seagate 40GB 3.5" SATA II

Key differences

The Seagate 250GB 3.5" SATA has 210 GB more HDD capacity than the Seagate 40GB 3.5" SATA II (250 GB vs 40 GB). The Seagate 250GB 3.5" SATA has 6 MB more storage drive buffer size than the Seagate 40GB 3.5" SATA II (8 MB vs 2 MB). The Seagate 40GB 3.5" SATA II has 0.8 A more start-up current than the Seagate 250GB 3.5" SATA (2.8 A vs 2 A). Interface: Serial ATA on the Seagate 250GB 3.5" SATA, Serial ATA II on the Seagate 40GB 3.5" SATA II.

• HDD capacity
  • 250GB 3.5" SATA:250 GB
  • 40GB 3.5" SATA II:40 GB
• Interface
  • 250GB 3.5" SATA:Serial ATA
  • 40GB 3.5" SATA II:Serial ATA II
• Storage drive buffer size
  • 250GB 3.5" SATA:8 MB
  • 40GB 3.5" SATA II:2 MB
• Start-up current
  • 250GB 3.5" SATA:2 A
  • 40GB 3.5" SATA II:2.8 A
• Non-operating shock
  • 250GB 3.5" SATA:300 G
  • 40GB 3.5" SATA II:350 G
• Width
  • 250GB 3.5" SATA:101 mm
  • 40GB 3.5" SATA II:101.6 mm
• Depth
  • 250GB 3.5" SATA:146 mm
  • 40GB 3.5" SATA II:147 mm
• Height
  • 250GB 3.5" SATA:26 mm
  • 40GB 3.5" SATA II:26.1 mm