1GB 240-pin DDR2 -533 PC2-4200 non-ECC non-Registered DIMM

DDR2 - Double data rate 2 - A new version of DDR which is twice as fast as original DDR. This module can be run in Dual Channel mode.

CT12864AA53E, KVR533D2N4K2/1G, HYS64T128020HU-3.5, M378T2953CZ3CD-5, EBE11UD8ABFA-5-CE, MT16HTF12864AT-53E, MT16HTF12864AY-53E, EBE11UD8AEFA-5-CE, HYMP512U64BP8-C4

Please consult your motherboard manual to confirm compatibility.