Guaranteed compatible upgrades for:

IBM/Lenovo ThinkPad T431s


System Specifications
Maximum Memory:
  • 12GB
Expansion:
  • 1 Socket
Standard Memory:
  • 4GB (Non-removable) +
  • 0GB (Removable) or
  • 2GB (Removable) or
  • 4GB (Removable) = 4, 6, or 8GB total
CPU/Chipset:
  • Intel Core i7 Intel QM77
  • Intel Core i5 Intel QM77
Bus Architecture:
  • Flash - SDXC; SSD - SATA 2.5-inch 7mm; USB 2.0/3.x Type-A
Mfr's System P/N's:
  • 20AAxxx; 20ACxxx
Upgrade Path:
  • Virtually any configuration up to 12GB can be reached using 4GB or 8GB modules.