We guaranty this kit will work in your machine.
4pcs. 8GB PC12800 1600MHz ECC Module
BRAND CMS
Lifetime exchange or repair warranty against manufacturing defects by Computer Memory Solutions Brand Computer Memory Solutions
Compatible with: IBM System x3250 M5 5458-xxx
Standard Memory: 4GB (Removable)
Maximum Memory: 32GB
Expansions: 4 Socket(s)