Guaranteed compatible upgrades for:

IBM/Lenovo ThinkPad W520 Series (w/2 SODIMM)


System Specifications
Maximum Memory:
  • 16GB
Expansion:
  • 2 Sockets
Standard Memory:
  • 2GB (Removable) or
  • 4GB (Removable)
CPU/Chipset:
  • Intel Core i7 Intel QM67
  • Intel Core i5 Intel QM67
Bus Architecture:
  • Flash - SDXC; SSD - mini-SATA (mSATA); SSD - SATA 2.5-inch 7mm; USB 2.0/3.x Type-A
Mfr's System P/N's:
  • 4270-xxx; 4276-xxx; 4282-xxx; 4284-xxx
Upgrade Path:
  • Virtually any configuration up to 16GB can be reached using any combination of 4, and 8GB modules.