![OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4520s (DDR3-8500) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4520s (DDR3-8500) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/61mlx7jlbVL.jpg)
OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4520s (DDR3-8500) Laptop Memory at Amazon.com
![Amazon.com: 1TB 2.5" Laptop Hard Drive for HP ProBook 4430s 4431s 4435s 4436s 4440s 4445s 4446s 4510s 4515s 4520s : Electronics Amazon.com: 1TB 2.5" Laptop Hard Drive for HP ProBook 4430s 4431s 4435s 4436s 4440s 4445s 4446s 4510s 4515s 4520s : Electronics](https://m.media-amazon.com/images/I/61crWRoG79L.jpg)
Amazon.com: 1TB 2.5" Laptop Hard Drive for HP ProBook 4430s 4431s 4435s 4436s 4440s 4445s 4446s 4510s 4515s 4520s : Electronics
![Replacement For hp Probook 4520S Screen LCD LED Display Matrix for laptop 40Pin 15.6" _ - AliExpress Mobile Replacement For hp Probook 4520S Screen LCD LED Display Matrix for laptop 40Pin 15.6" _ - AliExpress Mobile](https://ae01.alicdn.com/kf/H93de6199f0e54e39b388ce6b33103239E/Replacement-For-hp-Probook-4520S-Screen-LCD-LED-Display-Matrix-for-laptop-40Pin-15-6.jpg)
Replacement For hp Probook 4520S Screen LCD LED Display Matrix for laptop 40Pin 15.6" _ - AliExpress Mobile
![Amazon.com: New 2nd HDD SSD Hard Drive Caddy for HP ProBook 4530s 4540s 4520s 4430s 4510s 4515s 4320s 4540s 4545s Laptop Computer, SATA3 Second Solid State Drive Enclosure, Optical Bay Adapter Replacement : Amazon.com: New 2nd HDD SSD Hard Drive Caddy for HP ProBook 4530s 4540s 4520s 4430s 4510s 4515s 4320s 4540s 4545s Laptop Computer, SATA3 Second Solid State Drive Enclosure, Optical Bay Adapter Replacement :](https://m.media-amazon.com/images/I/61iZohcSkaL._AC_UF894,1000_QL80_.jpg)
Amazon.com: New 2nd HDD SSD Hard Drive Caddy for HP ProBook 4530s 4540s 4520s 4430s 4510s 4515s 4320s 4540s 4545s Laptop Computer, SATA3 Second Solid State Drive Enclosure, Optical Bay Adapter Replacement :
![How to disassemble the HP ProBook 4525s, replace the memory, hard drive, fan cleanup | SURPAN.CZ - YouTube How to disassemble the HP ProBook 4525s, replace the memory, hard drive, fan cleanup | SURPAN.CZ - YouTube](https://i.ytimg.com/vi/mtW3ql3FyFE/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AH-CYAC0AWKAgwIABABGE4gYihlMA8=&rs=AOn4CLAmJ9uJMvzy1MxTHCDxIHX_Mfbx_w)