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
4GB Memory for Lenovo 3000 G550 Series DDR3 PC3-10600 1333MHz SODIMM RAM (PARTS-QUICK BRAND) at Amazon.com
NOKOTION KIWA7 LA-5082P For Lenovo G550 Motherboard With Heatsink+4GB RAM +Power Button Switch Board+CPU Fit for G555 LA-5972P