Check at following Merchants
Speed
Modules
First Word Latency
Voltage
Compatible Products
Specifications
ManufacturerKingston
Part #KHX2133C9AD3T1K2/4GX
SpeedDDR3-2133
Form Factor240-pin DIMM (DDR3)
Modules2 x 2GB
ColorBlue
First Word Latency8.439 ns
CAS Latency9
Voltage1.65 V
ECC / RegisteredNon-ECC / Unbuffered
Heat SpreaderYes