7X77A01302: Lenovo ThinkSystem 16GB TruDDR4 2666 MHz (1Rx4 1.2V) RDIMM

Feature code AUNB is Lenovo's ordering code for 7X77A01302, a 16GB RDIMM module rated at 2666 MHz.

Lenovo Press lists it as an option in the ThinkSystem SR630 and SR650 product guides with feature code AUNB.

7X77A01302 specifications: Type DDR4 RDIMM; capacity 16GB; speed 2666 MHz; ranks 1Rx4; voltage 1.2V; lenovo feature code AUNB; part of the Lenovo ThinkSystem SR630/SR650 product line.