Lenovo 4X70G88316 Thinkserver, DDR4-2133 1x 8GB, ECC, Voltage 1.2V, Rank 2Rx8, Speed PC4-17000P-E, FF UDIMM. Axiom's DDR4 Modules use the latest evolutionary DRAM design, provides improved speed, power management and reliability. The release of DDR4 delivers an overall performance.