Guaranteed compatible upgrades for:

Toshiba Tecra R850 R850 Series (PT520A-007003) (PT520A-007003)

System Specifications
Maximum Memory:
  • 16GB
  • 2 Sockets
Standard Memory:
  • 2GB (Removable) or
  • 4GB (Removable) or
  • 6GB (Removable) or
  • 8GB (Removable)
  • Intel Core i5 2.5 GHz Intel QM67
Bus Architecture:
  • SSD - SATA 2.5-inch 9.5mm; USB 2.0/3.x Type-A
Mfr's System P/N's:
  • PT520A-007003; PT520A-01N003; PT520A-01S003; PT520A-01T003; PT520A-05M03201; PT525A-003019; PT525A-004002; PT525A-004019; PT525A-005019; PT525A-008019; PT525A-00Y019; PT525A-02L03Q
Upgrade Path:
  • Virtually any configuration up to 16GB can be reached using any combination of 4 and 8GB modules.