Add 2nd HDD to HP dual-drive laptop

How to add a 2nd Hard Drive or SSD to an HP Laptop equipped with two internal HDD bays such as the HP dv7, dv7t (including the dv7-4000 and dv7-5000, dv7tqe, dv7-6000) series, dv8, HDX-18, Envy 17. These laptops oftentimes come from the factory with only one drive installed and one internal bay that's empty. To install a 2nd HDD or SSD, you would need a HDD caddy and cable connector kit as shown in the video. The laptop used in the demo is a HP Envy 17. The other HP laptop models above mentioned will vary in installation process, but is similar. http://newmodeus.com/shop/index.php?main_page=index&cPath=2_5