If your laptop uses a standard CD/DVD drive, you can easily add a second hard drive to your laptop with the use of our Optical Bay Hard Drive caddy, also known as OBHD . The OBHD caddy does in place of your laptop's CD/DVD. This is a really sharp-looking well-engineered product. We offer "standard"/"universal" 12.7mm/ 9.5mm CD/DVD/Optical Drive bays for Acer Benq. We also offer specific 2nd Drive Bay Solutions for the Dell Media Bay, HP-Compaq Multibay, IBM Lenovo Ultrabay and Apple Slim Select Bay.