Item type: USB Digital Lens /p> USB interface: 2.0 USB interface Driver software: WINDS XP system comes with driver, plug and play, you need to download the driver software to use for other systems. Scope of application: 1.25-inch telescope Pixel: 30W Packing size: 11.2*6.7*8.7cm Telescope interface: 1.25 inches Features -- Eco-friendly material -- 30W Pixels with USB interface Package includes: 1 * USB Digital Lens (with data line) 1 * manual Notes: 1-2cm error might exist due to manual measurements, please kindly understand. The colors deviation might differ due to different monitor settings. We provide you with the best product and service. If you have any problem, please let us know, and we will solve the problem ASAP. Thank you so much.