![A-Tech 4GB Module for HP ProBook 4540s Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS322399B12034X1) at Amazon.com A-Tech 4GB Module for HP ProBook 4540s Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS322399B12034X1) at Amazon.com](https://m.media-amazon.com/images/I/41UmE4H7jTL._AC_SY580_.jpg)
A-Tech 4GB Module for HP ProBook 4540s Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS322399B12034X1) at Amazon.com
![New Laptop HP ProBook 4540S 4GB Intel Core I5 HDD 500GB in Central Division - Laptops & Computers, Sula Sula Computer | Jiji.ug New Laptop HP ProBook 4540S 4GB Intel Core I5 HDD 500GB in Central Division - Laptops & Computers, Sula Sula Computer | Jiji.ug](https://pictures-uganda.jijistatic.com/9729528_NzIwLTY4NS05Yjg0ZTRjY2Ri.jpg)
New Laptop HP ProBook 4540S 4GB Intel Core I5 HDD 500GB in Central Division - Laptops & Computers, Sula Sula Computer | Jiji.ug
![Restored HP ProBook 4540S 15.6" Laptop, Windows 10 Pro, Intel Core i5-3210M Processor, 8GB RAM, 180GB Solid State Drive (Refurbished) - Walmart.com Restored HP ProBook 4540S 15.6" Laptop, Windows 10 Pro, Intel Core i5-3210M Processor, 8GB RAM, 180GB Solid State Drive (Refurbished) - Walmart.com](https://i5.walmartimages.com/asr/6bb974b6-63e8-47cc-bd54-9ec1362e1621_1.8d8afdd8a7351ad2c9f5951d8b534b7c.jpeg)
Restored HP ProBook 4540S 15.6" Laptop, Windows 10 Pro, Intel Core i5-3210M Processor, 8GB RAM, 180GB Solid State Drive (Refurbished) - Walmart.com
![OFFTEK 8GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4540s (DDR3-10600) Laptop Memory at Amazon.com OFFTEK 8GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4540s (DDR3-10600) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/51mMOVQcnWL._AC_SY580_.jpg)
OFFTEK 8GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 4540s (DDR3-10600) Laptop Memory at Amazon.com
![HP ProBook 4540S Laptop (Core i3 3rd Gen/4 GB/500 GB/DOS) in India, ProBook 4540S Laptop (Core i3 3rd Gen/4 GB/500 GB/DOS) specifications, features & reviews | 91mobiles.com HP ProBook 4540S Laptop (Core i3 3rd Gen/4 GB/500 GB/DOS) in India, ProBook 4540S Laptop (Core i3 3rd Gen/4 GB/500 GB/DOS) specifications, features & reviews | 91mobiles.com](https://www.91-img.com/pictures/laptops/hp/hp-4540s-core-i3-3rd-gen-4-gb-500-gb-dos-59058-large-1.jpg)