This product is either discontinued or we cannot get that from suppliers.
Lenovo 8gb Ddr4 Udimm Ram 4x70r38787, 8GB, 288-Pin DDR4 SDRAM, Speed DDR4 2666 (PC4 21300), CAS Latency-15, Voltage 1.20V, Unregistered.
The Lenoo 8GB DDR4 2666MHz UDIMM Memory enables high I/O data transfer rate and reduced power consumption. With this DDR4 memory you will achieve better performance without straining the power needs.