Full Details on Amazon.com : http://www.amazon.com/gp/product/B00BSQZANW?tag=tsukuyomi-20
HIGHDING SATA CD DVD-ROM/RAM DVD-RW Drive Writer Burner for HP Pavilion dm4 dm4t Series
Read Speed DVD 8x max CD 24x max
Write Speed DVD-R 8x max DVDR 8x max DVD-RW 6x max DVDRW 8x max DVD-R DL 6x max DVDR9 6x max CD-R 24x max CD-RW 24x max
Compatibility All Windows OS
NOTE THAT 1 Our optical drive is just a bare dvd 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 drives accessories with a screwdriver then install them on our optical drive and then you can use it 3 We will include one manual in package box for your reference it is very easy to operate