A Hypertec Legacy Toshiba equivalent 512MB SODIMM (PC2100) from Hypertec
Hypertec PA3164U-1M51-HY (Legacy), 0.5 GB, DDR, 266 MHz
Hypertec PA3164U-1M51-HY (Legacy). Internal memory: 0.5 GB, Internal memory type: DDR, Memory clock speed: 266 MHz