![OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/61mlx7jlbVL.jpg)
OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com
![Laptop HP ProBook 6550b Intel Core i5-M520 @ 2.40Ghz 4GB RAM 500GB HDD Windows 7 Professional 15.6" Grade A - ElectroBargoon Laptop HP ProBook 6550b Intel Core i5-M520 @ 2.40Ghz 4GB RAM 500GB HDD Windows 7 Professional 15.6" Grade A - ElectroBargoon](https://electrobargoon.com/wp-content/uploads/2021/08/hpProBook6550b_01.jpg)
Laptop HP ProBook 6550b Intel Core i5-M520 @ 2.40Ghz 4GB RAM 500GB HDD Windows 7 Professional 15.6" Grade A - ElectroBargoon
![OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/71nBR0kPxZL.jpg)
OFFTEK 4GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com
![HP ProBook 6550b 15.6" Widescreen Laptop - with Intel i5-520M 2.4GHz, 4GB RAM, 128GB SSD Hard Drive - Windows 7 Professional 64 - Used with FREE 3 Year Warranty provided by CPS. - Walmart.com HP ProBook 6550b 15.6" Widescreen Laptop - with Intel i5-520M 2.4GHz, 4GB RAM, 128GB SSD Hard Drive - Windows 7 Professional 64 - Used with FREE 3 Year Warranty provided by CPS. - Walmart.com](https://i5.walmartimages.com/asr/15e9fcf6-8845-4843-9ced-2434093b6db7_1.384323b096f8c23c58e3b82fb137f2f6.jpeg)
HP ProBook 6550b 15.6" Widescreen Laptop - with Intel i5-520M 2.4GHz, 4GB RAM, 128GB SSD Hard Drive - Windows 7 Professional 64 - Used with FREE 3 Year Warranty provided by CPS. - Walmart.com
![OFFTEK 1GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com OFFTEK 1GB Replacement Memory RAM Upgrade for HP-Compaq ProBook 6550b (DDR3-10600) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/I/71Vz3D01fSL._AC_UF894,1000_QL80_.jpg)