All units are compatible with specific models of PS3 only. Pease confirm a 100% match. This product does not come with instructions manual, guide or video. As time permits, we will try to have video guides. We are not responsible for any damage you may cause due to improper installation. Full optical block KEM-450DAA. Product is brand new genuine OEM component. You should be familiar with desoldering/soldering/installation. If not, have a experienced technician perform the installation. Try to do a search to ses if you understand the installation process. Improvper installation can damage the item and the buyer will be responsible for this kind of damage. Professional installation is recommended.