Specifications for Lenovo ThinkPad X220 (4287, 4290, 4291-xxx)
- CPU: Intel Core i5
- Standard Memory: 2GB or 4GB (Removable)
- Maximum Memory: 16GB
- System Class: Notebook PC
- Expansion: 2 Sockets
- Memory Comments:
- Mfgr’s System P/N’s: 4287-xxx, 4290-xxx, 4291-xxx
- Requires 7mm 2.5” SSDs