It is the heart of the optical drive and the most sophisticated part. It is mainly responsible for data reading This -DL5 optical pick-up laser-lens is compatible for Made of high-quality electronic components, it is and long serving life Fine workmanship, standardized design.It is a great Optical laser-lens replacement for the worn out or damaged laser-lens. Note : This Optical Pickup Need to Remove Short land point, we recommend Professional do this, if you 't not have skill , ask someone to help Colour: Black material: plastic Model: S0H - DL5 Type: laser-head Band range: visible light Mode of operation: continuous type Motivation: electric incentive Speed: high speed Channel: single channel Weight: 21g Package includes: 1 x Optical Pick-Up Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.