Feature: 1. Easy to install, strong universal and easy to use. 2. Connected via USB cable, which can easily collect and store microscopic images on PC and mobile devices. 3. The optical interface adopts international standard eyepiece size, suitable for all kinds of microscopes with inner diameter of eyepiece tube of 23.2mm, 30.0mm or 30.5mm. 4. Especially suitable for users who need digital traditional microscopes but have limited budget. 5. It can work seamlessly with microscope interface. High frame rate output and true restore slice color. 6. Drive free, plug and play, support for Windows/ for Linux/ for Android and other operating systems. 7. Professional micro image software is included. Specification: Item Type: Microscope Electronic Eyepiece Material: Aluminum Alloy Color: Black Computer Interface: USB 2.0 Microscope Interface: 23.2mm/ 30mm/ 30.5mm interface optional Pixel: 2 MP Chip: 1/3 APTINA COMS Transmission Rate: 1600X1200 YUY2@15FPS 1280X1024 YUY2@8FPS 800X600 YUY2@30FPS 640X480 YUY2@30FPS 320X240 YUY2@30FPS Operating System: For Windows/ for Linux/ for Android and other operating systems Application: Microscope with inner diameter of eyepiece tube of 23.2mm, 30.0mm and 30.5mm Weight: Approx. 164 g Package List: 1 x Microscope Electronic Eyepiece1 x 30mm Adapter Ring1 x 30.5mm Adapter Ring1 x Software1 x USB Cable