Amazon.com: Replacement Keyboard with Frame for HP ProBook 4330 4330S 4331S 4430s 4431s 4435s 4436s Series Black US Layout, Compatible with Part Number 646365-001 : Electronics
Amazon.com: AC Doctor INC Laptop Battery for HP ProBook 4330s 4331s 4430s 4431s 4530s 4535s 4435s 4436s 4440s 4441s 4446s 4540s 4545s 7420, 5200mAh/6-Cells : Electronics
Amazon.com: TLBTEK Keyboard Replacement Compatible with HP ProBook 4530S 4535S 4730S 4735S Series Laptop 667661-001 638178-001 646365-001 L3S11T8T MP-10L93LSHB02 L3S11T8STMB L3S11T8USTODL : Electronics
Amazon.com: 4530S 4540S 4430S DTK Laptop Battery Replacement for Hp Probook 4330s 4331s 4431s 4435s 4535s 4536s 4440s 4441s 4446s 4545s Series [6-Cell 10.8v 4400mah] : Electronics
OFFTEK 2GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4330s (DDR3-10600) Laptop Memory at Amazon.com