Samsung DDR3L 1600MHzCL11 32GB LRDIMM 4Rx4 (PC3 12800) Internal Memory M386B4G70DM0-YK0

LRDIMM modules buffer both control and data lines while keeping the parallel nature of all signals. As such, LRDIMM memory provides large overall maximum memory capacities. They are not compatible with registered/buffered memory, and motherboards that require them usually will not accept any other kind of memory.