256MB PC133 ECC Non Registered SDRAM Type SDRAM Capacity 256 MB Size & Bit 32X72-75 Speed PC133 MHz Pins 168 ECC Yes Registered No Manufacturer ...

256MB PC133 SDRAM 168-PIN DIMM 32X64-75 16x8 Low Density Type SDRAM (Low Density) Capacity 256 MB Size & Bit 32X64-75 Speed PC133 MHz Pins 168 ECC No Registered No ...

 256MB PC100 ECC Registered SDRAM 168-PIN Type SDRAM (Server Memory Low Density) Capacity 256 MB Size & Bit 32X72-8 Speed PC100 MHz Pins 168 ECC Yes Registered Yes...

256MB PC100 ECC Registered SDRAM 168-PIN Type SDRAM (Server Memory High Density) Capacity 256 MB Size & Bit 32X72-8 Speed PC100 MHz Pins 168 ECC Yes Registered Yes ...

256MB PC100 SDRAM 168-PIN Type SDRAM Capacity 256 MB Size & Bit 32X64-8 Speed PC100 MHz Pins 168 ECC No Registered No Manufacturer ...

256MB PC133 SDRAM Type SDRAM Capacity 256 MB Size & Bit 32X64-75 Speed PC133 MHz Pins 168 ECC No Registered No Manufacturer Micron/Samsung/Hitachi/Infineon/Hyundai ...

256MB PC100 ECC Non-Registered SDRAM Type SDRAM (server Memory) Capacity 256 MB Size & Bit 32X72-8 Speed PC100 MHz Pins 168 ECC Yes Registered No Manufacturer ...

256MB PC2 3200 DDR2 400MHz ECC REGISTERED 240 Pin Memory only for Server

256MB DDR2 PC2 5300 667 MHZ ECC REGISTERED FULLYBUFFERED

256MB DDR2 PC2-4200 533MHZ FULLY BUFFERED MEMORY