Kingston Technology System Specific Memory 128 MB,SO DIMM 144-pin, SDRAM, 133 MHz / PC133, 3.3 V for HP OmniBook XE PII XE2 PIII, 144-pin SO-DIMM Kingston Technology System Specific Memory 128 MB,SO DIMM 144-pin, SDRAM, 133 MHz / PC133, 3.3 V for HP OmniBook XE PII XE2 PIII. Memory Formfaktor: 144-pin SO-DIMM