Kingston Memory 16 GB: 2 x 8 GB FB-DIMM 240-pin DDR2 667 MHz / PC2-5300 Fully Buffered ECC Please note: networking components such as switches, routers, UPS & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.