GH30N Hitachi GH30N HITACHI GH30N Hitachi/LG GH30N 18x DVD RW DL SATA Drive General Features: Black bezel SATA interface 108 ms DVD access time 108 ms CD access time 2 MB buffer Automatic buffer underrun error prevention technology Power tray loading and ejection of disc Horizontal or vertical mount Read Speeds: 16x DVD read speed 48x CD read speed Write Speeds: 18x maximum write speed (DVD R)