8GB, 667MHz, PC2-5300F-5, DDR2, dual-rank x4, 1.50V, registered, fully-buffered with ECC, dual in-line memory module (FBDIMM) - Part number is for one 8GB DIMM, Refurbished
32GB PC4-2666V-R, registered synchronous dynamic random access memory (SDRAM) 2Gx4, operated in a dual data rate (DDR4) mode, packaged in a dual in-line memory module organized as 4Gx72