What is the maximum write speed of ASUS BW-16D1HT? Does it support BD-R(QL) 128GB disc?

The maximum write speed for both BD-R and DVD+R/DVD-R is 16X.
Yes, it supports BD-R(XL)/BD-R(TL),BD-R(DL), and BD-R(QL). For more detailed specifications, please refer to Specification of ASUS BW-16D1HT.

Updated : Nov 21, 2019.