HP-Compaq 1GB DDR2 PC2-5300 Unbuffered Module Pins: 240 Voltage: 1.8V Frequency: 667MHz Ranks: 2 Compatible Products 398038-001 (HP/Compaq); ET209AV (Kit of 2) (HP/Compaq); PX976AA (HP/Compaq); PX976AT (HP/Compaq) Compatible Systems HP-Compaq HP-Compaq Blackbird HP-Compaq Blade bc dc HP-Compaq Business PC Desktop HP-Compaq CQ Desktops HP-Compaq Digital Entertainment Center HP-Compaq Media Center HP-Compaq Pavilion Pavilion A1000 A5000 HP-Compaq Pavilion Pavilion A6000 A6100 HP-Compaq Pavilion Pavilion A6200 A6300 HP-Compaq Pavilion Pavilion A6400 A6500 HP-Compaq Pavilion Pavilion b d HP-Compaq Pavilion Elite HP-Compaq Pavilion Pavilion g j k HP-Compaq Pavilion Media Center HP-Compaq Pavilion Slimline HP-Compaq Pavilion Pavilion t HP-Compaq Pavilion Pavilion u v w x HP-Compaq Point of Sale System HP-Compaq Presario Media Center HP-Compaq Presario Presario SA SG SV HP-Compaq Presario Presario SR1000 HP-Compaq Presario Presario SR2000 HP-Compaq Presario Presario SR5000 HP-Compaq xw Workstations * Please contact us for system specific compatibility