Transcend 8Gb (1 X 8Gb) DDR4 2666Mhz DIMM System MemoryNtbsd4p26sp-08 Is A 1G X 64-Bit (1R8) Or 512M X 64-Bit (2R8)Ddr4-2666 Cl19 Sdram (Synchronous Dram), Memory Module,Based On Eight 1G X 8-Bit Or Sixteen 512M X 8 Fbga Components Per Module. The Spd Is