This is Server memory not for regular PC......

Server; Hynix 8GB(2X4GB) PC3L-10600R DDR3-1333MHz ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module

     Technical Specifications

         Manufacturer          Hynix
          Manufacturer Part #          HMT351R7BFR8A-H9T7-AB
          Memory Type          DDR3 SDRAM
          Capacity          4GB
          Pins          240 Pin
          Bus Type          PC-10600
          Error Correction          Registered ECC
          Cycle Time          1.5ns
          Cas          CL9
          Data Transfer Rate          1333Mhz
          Memory Clock          166Mhz
          Rank          Rank 2
          Voltage          1.35