ASUS BW-16D1H-U PRO. Product colour: Black, Disc loading type: Tray, Mounting: Vertical/Horizontal. Purpose: Desktop/Laptop, Optical drive type: Blu-Ray DVD Combo, Interface: USB 3.2 Gen 1 (3.1 Gen 1). DVD+R write speed: 16x, CD-R write speed: 48x, CD-RW write speed: 24x. CD-R read speed: 48x, CD-RW read speed: 40x, CD-ROM read speed: 48x. DVD drive average random access time: 170 ms, CD-ROM drive average random access time: 150 ms, BD-ROM average random access time: 180 ms