GetUSCart- Genuine New Laptop Internal 4K Ultra HD UHD Blu-ray Player for LG BU50N, Dual Layer BDXL 100GB 6X BD-RE DVD+R DL M-Disc Burner 9mm Ultra Slim SATA Optical Drive Replacement
HL BU40N BU50N Laptop 4K Ultra HD UHD 6X 3D Blu-ray Writer BD-RE SL DL TL QL 4X BDXL 100GB 128GB Bluray Burner Slim SATA Drive - AliExpress
Genuine for LG HL BU50N 4K Ultra HD UHD 6X 3D Blu-ray Burner Dual Layer BD-RE DL 4X BDXL 100GB 128GB 8X DVD RW Writer Laptop Internal Ultra Slim 9mm SATA Optical