512mb pc133 sdram 133mhz memory

1 x 512MB 168pin SDRAM DIMM 64Mx72 ECC Registered gold leads 3.3 volts PC133 spec 133 Mhz with SPD CAS 3 latency CL3 1.75 inches talls 64x4 dram

System Memory 512MB ECC Registered Module for ToshibaOEM equivalent to MMU3533A-U0001