7X77A01303: Lenovo ThinkSystem 16GB TruDDR4 2666 MHz (2Rx8 1.2V) RDIMM

For ThinkSystem SR630 and SR650 configurations, 7X77A01303 covers 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 AUNC.

7X77A01303 specifications: Type DDR4 RDIMM; capacity 16GB; speed 2666 MHz; ranks 2Rx8; voltage 1.2V; lenovo feature code AUNC; part of the Lenovo ThinkSystem SR630/SR650 product line.