LG GH24NSD1, Black, Tray, Vertical/Horizontal, Desktop, DVD Super Multi DL, Serial ATA LG GH24NSD1. Product color: Black, Disc loading type: Tray, Mounting: Vertical/Horizontal. Purpose: Desktop, Optical drive type: DVD Super Multi DL, Interface: Serial ATA. CD write speed: 48x, DVD+R write speed: 24x, CD-R write speed: 48x. CD read speed: 48x, CD-R read speed: 48x, CD-RW read speed: 48x. DVD drive average random access time: 145 ms, CD-ROM drive average random access time: 125 ms, DVD-RAM access time: 270 ms