4GB Total memory using 1pc of 4GB 1600MHz Module 204pin dimm DDR3 12800. Lifetime warranty for exchange. We don't use OEM or Generic modules to avoid incompatibility issues. Guaranteed to work or you get all of your money back including shipping. Brand Computer Memory Solutions Max Memory: 32GB Sockets for
Upgrading: 2 Max memory per Socket 4GB If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system. MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode Compatible with the following
Systems: Lenovo ThinkCentre M93/M93p Tiny 10A4xxx; 10A5xxx; 10AAxxx; 10ABxxx