Model Brand CORSAIR Series XMS Model CMX1024-3200C2PRO Type 184-Pin DDR SDRAM Tech Spec Capacity 1GB Speed DDR 400 (PC 3200) Cas Latency 2 Timing 2-3-3-6 Voltage 2.75V ECC No Buffered/Registered Unbuffered Heat Spreader Yes Features New high-efficiency aluminum XMS heatsink, 18 activity LED's show level of memory activity