HP Memory (DIMM)
VK526AV
is compatible in the following HP Models:
Compaq Presario CQ42 Notebook PC series
Compaq Presario CQ42-264TX NB PC - WZ546PA
Compaq Presario CQ42-284TX NB PC - XB864PA
Compaq Presario CQ42-286TX NB PC - XB866PA