8GB Total memory using 2pc of 4GB 1333MHz Module 240pin dimm DDR3 10600.
Lifetime warranty for exchange. by Computer Memory Solutions
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.
This Module might be manufactured by Computer Memory Solutions

Max Memory: 16GB

Sockets for Upgrading: 4
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 M90p 
Lenovo ThinkCentre M90p 3269-xxx
Lenovo ThinkCentre M90p  3282-xxx
Lenovo ThinkCentre M90p 3394-xxx
Lenovo ThinkCentre M90p 3321-xxx
Lenovo ThinkCentre M90p 3627-xxx
Lenovo ThinkCentre M90p 3652-xxx
Lenovo ThinkCentre M90p 5450-xxx
Lenovo ThinkCentre M90p 5472-xxx
Lenovo ThinkCentre M90p 5498-xxx
Lenovo ThinkCentre M90p 5536-xxx
Lenovo ThinkCentre M90p 5852-xxx
Lenovo ThinkCentre M90p 5864-xxx
Lenovo ThinkCentre M90p 6213-xxx
Lenovo ThinkCentre M90p 6590-xxx
Lenovo ThinkCentre M90p 6673-xxx
Lenovo ThinkCentre M90p stdb2mz