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Guaranteed compatible upgrades for:

Toshiba Dynabook Satellite B551/D (PB551DAPN75A51)

Samsung 870 Evo 4TB 2.5" 7mm SATA III Internal SSD

Samsung 870 Evo 4TB 2.5" 7mm SATA III Internal SSD

Save $35
Crucial MX500 2TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 2TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Save $25.01
Crucial MX500 1TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 1TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Save $10
Crucial MX500 500GB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 500GB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Save $7
Crucial MX500 250GB 2.5" 7mm SATA III Internal SSD

Crucial MX500 250GB 2.5" 7mm SATA III Internal SSD

Save $0.10
System Specifications
Maximum Memory:
  • 8GB
Expansion:
  • 2 Sockets
Standard Memory:
  • 2GB (Removable) or
  • 4GB (Removable) or
  • 6GB (Removable)
CPU/Chipset:
  • Intel Core i3 Intel HM65
  • Intel Core i5 Intel HM65
  • Intel Core i7 Intel HM65
Bus Architecture:
  • SSD - SATA 2.5-inch 9.5mm; USB 2.0/3.x Type-A
Mfr's System P/N's:
  • PB551DAPN75A51
Upgrade Path:
  • Up to 8GB can be reached using 4GB modules.