OCZ DDR2 512 MB PC2-4200 Value Series
Toshiba DDR2 512 MB PC2-4200 Value Series, 0.5 GB, DDR2, 533 MHz, 240-pin DIMM
Toshiba DDR2 512 MB PC2-4200 Value Series. Internal memory: 0.5 GB, Internal memory type: DDR2, Memory clock speed: 533 MHz, Memory form factor: 240-pin DIMM, CAS latency: 4