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) - Newegg.com
Amazon.com: New for Lenovo IdeaPad G50-30 G550 G510 G580 G700 G710 G780 G575 Notebook PC 8X DVD RW DVD-RAM Writer Super Mult 24X CD-RW Burner Internal SATA Optical Drive Replacement : Electronics
Seifelden 8GB (2X4GB) Memory RAM for IBM Lenovo G550 Laptop Memory Upgrade - Walmart.com
NOKOTION KIWA7 LA 5082P For Lenovo G550 Motherboard With Heatsink+4GB RAM +Power Button Switch Board+CPU Fit for G555 LA 5972P| | - AliExpress