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. Item Type: Microscope Electronic Eyepiece Material: Aluminum Alloy Color: Black Computer Interface: USB 2.0 Pixel: 5 MP Chip: 1/3APTINA COMS Transmission Rate: 2@2592-1944 10@1024x768 (YUV) 12@2592x1944 30@1024x768 (MJPG) 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. 172.1 g 1 x Microscope Electronic Eyepiece 1 x 30mm Adapter Ring 1 x 30.5mm Adapter Ring 1 x Software CD 1 x USB Cable