External DVD-RW

Interface：USB2.0

24X CD-ROM， 8X DVD-ROM read；

8X DVD+R, 8X DVD-R record；

8X DVD+RW，6X DVD-RW record；

6x DVD+R9(DL,Dual-layer),
6X DVD-R9(DL,Dual-layer,),
5x DVD-RAM record；
2
4X CD-R，24X CD-RW record.

Cache Memory：2MB

No Dirver type（not including Windows98SE）

Support Windows98SE/ME/2000/XP/win7 OS

Support MacOS8.6 and up OS

Support DOS start(guide install Windows XP and other OS)

External COMBO cd Burner

Optical type: combo
Interface: USB2.0

Max DVD read speed: 8X

Max CD read speed: 24X

Record CD speed：24x

External dvd-rom

Interface: USB2.0                                      
Function：24X CD-ROM，8X DVD-ROM read.     
Can only read,can't record.

Packing including：USB date cable，USB power cable，Manual book.

External cd-rom
24X CD-ROM read.
can play CD，VCD disk.

Support Windows98SE/ME/2000/XP/win7 OS.