![OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (DDR3-8500) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (DDR3-8500) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/71Vz3D01fSL._AC_UF894,1000_QL80_.jpg)
OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (DDR3-8500) Laptop Memory at Amazon.com
![4Gb (1X4Gb) Memory RAM Compatible with Hp Probook 6440B, 6450B, 6540B (Ddr3) By CMS (A34 - Computer Memory Solutions 4Gb (1X4Gb) Memory RAM Compatible with Hp Probook 6440B, 6450B, 6540B (Ddr3) By CMS (A34 - Computer Memory Solutions](https://www.computermemorysolutions.com/wp-content/uploads/2018/02/DDR3204PINSODIMMX1Front350996.jpg)
4Gb (1X4Gb) Memory RAM Compatible with Hp Probook 6440B, 6450B, 6540B (Ddr3) By CMS (A34 - Computer Memory Solutions
![Refurbished: Refurbished HP Grade A Probook 6440B 14" Laptop, Intel Core I5-520M 2.4 GHz, 8GB Memory, 1T, DVD, WIFI, Windows 10 Home 64-bit (Multi-language), 1 Year Warranty - Newegg.com Refurbished: Refurbished HP Grade A Probook 6440B 14" Laptop, Intel Core I5-520M 2.4 GHz, 8GB Memory, 1T, DVD, WIFI, Windows 10 Home 64-bit (Multi-language), 1 Year Warranty - Newegg.com](https://c1.neweggimages.com/ProductImage/34-271-510-S01.jpg)
Refurbished: Refurbished HP Grade A Probook 6440B 14" Laptop, Intel Core I5-520M 2.4 GHz, 8GB Memory, 1T, DVD, WIFI, Windows 10 Home 64-bit (Multi-language), 1 Year Warranty - Newegg.com
![OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (DDR3-8500) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (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 6440b (DDR3-8500) Laptop Memory at Amazon.com
![OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (DDR3-8500) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6440b (DDR3-8500) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/71nBR0kPxZL.jpg)