Size / capacity 4gb (1x4gb) memory model laptop/sff memory max. memory channels provided by kit single (1) memory type ddr4 so-dimm memory type (ecc) non-ecc memory type (r/u) udimm (unbuffered) memory speed pc4-21300 (2666) pins 260 memory ranks cas latency 19-19-19 voltage 1.2 v