Lenovo ThinkPad X121e 3051 Memory

System Memory

Standard Memory: 4096 MB (1 x 4 GB)
Maximum Memory: 8 GB
Expansion Sockets: 2
Memory Comments: PC3-10600 DDR3 SDRAM SO DIMM 204-pin

System Specifications

Processor: AMD E-300
Model Comments: AMD A50M

These memory upgrades are all guaranteed to work with