Lenovo ThinkStation C20 4265 Memory

System Memory

Standard Memory: 4096 MB (2 x 2 GB)
Maximum Memory: 24 GB
Expansion Sockets: 6
Memory Comments: PC3-10600 DDR3 SDRAM DIMM 240-pin ECC

System Specifications

Processor: Intel Xeon
Model Comments: Intel 5520

These memory upgrades are all guaranteed to work with