Samsung 16GB (1x16GB) DDR4 RDIMM 2666MHz CL21 1.2V Registered 1Rx4 PC421300V-R Server Memory RAM - Include a register for enhancing clock, command and control signals - Error correction available by added 8 bit parity signals - Supports x4 / x8 Organization / up to 2 ranks per DIMM and 3DPC configuration - Application : Server