Elpida / HP 2GB PC3-12800 DDR3-1600MHz non-ECC Unbuffered CL11 240-Pin DIMM Single Rank Memory Module (EBJ20UF8BDW0-GN-F 655409-150). This is a seller refurbished part in great working condition. May show signs of cosmetic wear but this should not interfere with the effectiveness of the product. Taken from a working environment.