PURCHASED FOR A BUILD BUT WEREN'T USED.

The Samsung SO-DIMM with manufacturer reference 
M471B5773DH0-YK0 is a unbuffered SO-DIMM non-ECC DDR3L 1600MHz 204Pin with 2GB capacity (256Mbx64).
It is organized with 8 FBGA(78ball) 256Mx8 DRAM (Dynamic Random Access Memory).