Amazon.com: 9.0mm 2nd Hard Drive HD SSD SATA Optical Bay Caddy Bracket Frame Tray for Lenovo IdeaPad G50 G50-30 G50-45 G50-70 G50-80 : Electronics
Lenovo G50 SSD/HDD and Memory Upgrade and Repair Guide - YouTube
Lenovo G50-80 Series 8X DVD±RW SATA Burner Drive DA-8A6SH (A32-32) | eBay
Lenovo G50-70 G50-70m G50-80 Slim optical drive 9.0MM SATA
Amazon.com: Charging Port DC in Power Jack Cable Replacement for Lenovo IDEAPAD G50-30 G50-40 G50-45 G50-50 300-15ISK 300-15IBR 300-17ISK DC30100LD00 : Electronics
DVD SATA Adapter Connector Board for LENOVO G50 G50-30 G50-45 G50-70 G50-80 Z50-70 with cable NS-A274 - AliExpress
Lenovo G50-45 model 80E3 disassembly – Inside my laptop