HIGHDING SATA Blu-ray BD-R/RE Drive Burner Writer Replacement for Dell Inspiron 17R 5720,17R SE 7720 For Dell Inspiron 17R model 5720, Inspiron 17R model SE 7720 Read Speed: BD: 6x max. DVD: 8x max. CD: 24x max. Write Speed: BD-R: 6x max. BDXL: 4x max. BD-R DL: 4x max. BD-RE: 2x max. DVD-R: 8x max. DVD+R: 8x max. DVD-RW: 6x max. DVD+RW: 8x max. DVD-R DL: 6x max. DVD+R9: 6x max. CD-R: 24x max. CD-RW: 24x max. Size: 12.7mm (0.5 inch) thick. Not compatible with 9.5mm thick dvd drive. Not compatible with 1.6 inch thick dvd drive NOTE THAT : 1. Our optical drive is just a Blu-ray drive WITHOUT any original accessories( faceplate, mounting frames, hooks, brackets) 2. If you replace your old optical drive by yourself, you just need to remove your old optical drive's accessories with a screwdriver, then install them on our optical drive, then you can use it. 3. We will include one manual in package box for your reference, it is so easy to operate.