Also has 1 micro USB port and 2 USB ports that can serve as a mini USB hub for your laptop to connect, transfer or backup your laptop's accessories more conveniently. Maximum reading speed: CD-ROM: 24x speed DVD-ROM: 8x speed CD-RW: 8x speed CD-R: 24x speed CD-RE: 4x speed HIGH-speed CD-RW: 10x speed Uitra speed CD-RW: 24x speed DVD-R: 8x speed DVD-R DL: 6x speed DVD+R: 8x speed DVD+R DL: 6x speed DVD-RAM: 6x speed.
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