Dell Qflix DX-20A6Q 20x DVD&plusmn;RW DL USB 2.0 External Drive w/Software (Black/Gray) Dell Qflix DX-20A6Q 20x DVD RW DL USB 2.0 External Drive General Features: External DVD RW drive USB 2.0 interface Qflix enabled DVD burner 20x maximum write speed (DVD R) 8x maximum write speed (DVD R DL) 8x maximum write speed (DVD+RW) 6x maximum write speed (DVD-RW) 12x maximum write speed (DVD RW, DVD-RAM) 16x/8x maximum read speed (DVD, Single layer/ Double layer)