Kingston memory is designed, manufactured & rigorously tested to meet the exact specifications of each brand name system. It&153;s guaranteed to be compatible & backed by a lifetime warranty & legendary Kingston reliability. Feature Feature Value Internal memory 4 GBInternal memory type DDR4 Memory clock speed 2666 MHz Component for PC/server Memory form factor 288-pin DIMMMemory layout (modules x size)1 x 4 GBBuffered memory type Unregistered (unbuffered)ECCNCAS latency 19 Memory voltage 1.2 V