IBM System xSeries System x3750 M4 compatible Black Diamond memory 4GB 2X2GB DDR3 ECC UDIMM 1600MHz. Compatible computer model: IBM System xSeries System x3550 M3, System x3650 M4, System x3630 M4, System x iDataPlex dx360 M4, System x3250 M3, System x3550 M4, System x3500 M3, System x3250 M4, System x3650 M3, System x3200 M3 (Type 7327 and 7328), System x3500 M4, System x3530 M4, System x3750 M4, System x3300 M4, System x3100 M4. Black Diamond Memory offers the most extensive line of memory solutions today. With our decades of experience specializing in memory, Black Diamond Memory is a proven manufacturer to the semiconductor industry. Our great products combined with our world class service and support have helped us to where we are today. When you have an Black Diamond memory chip, you can count on it being the best available memory for your system. Our system specific Branded Memory line delivers in performance, and is designed to be guaranteed in compatibility with your system. Each of our memory chips come with a lifetime warranty for your peace of mind. Use our Upgrade Configurator to easily find the correct memory module for your system. Please keep in mind that this memory will ONLY work on the models listed above. 15% Restocking fee will apply for non-defective items.