SSD Upgrade for Lenovo G550 256GB/512GB/1TB/2TB | eBay
Lenovo G550 Hard Disk Replacement Upgrade - YouTube
NeweggBusiness - Lenovo Laptop Intel Core 2 Duo T6600 (2.20GHz) 3GB Memory 320GB HDD Intel GMA 4500MHD 15.6" Windows XP Professional preinstalled with Windows 7 Professional Upgrade Option G550(2958-A4U)