Fangrui Product Details 1. 500x Zoom Magnifier 3mp Image Sensor Usb Digital Microscope With 2.5 Inch Screen & 8 Led & Professional Stand, Support Tf Card 2. About The Product 3. The 2.5 Inch Desktop Lcd Digital Microscope Is A Fantastic Microscope That Provides A Good Way For You To Have Microscopic Observation On The Go. The 2.5 Inch Quality Lcd Panel Brings Vivid Crystal Image. Equipped With Professional Microscopic Lens, It Helps You To See Tiny Objects Easily. The 8 Bright Leds Are Bright, Enough For Observation. 4. Features 5. The Main Control Chip: Special Master 16 Bit Dsp. 6. Image Sensor: 3mp High Quality Image Sensor. 7. Magnifications: 20x-500x (when Connecting 21 Inch Pc). 8. Resolution: 3mp, 1.3mp. 9. Sensors: High-performance Light-sensitive Chips. 10. Vga Lens: High Quality Microscopic Lens. 11. Display: 2.5inches Tft Panel, 4:3 Ratio. 12. Light Sources: 8 Leds With Adjustable Brightness. 13. Base: Lifting Bracket Base. 14. Image Resolution: Standard 640 * 480. 15. Power Supply: Usb (dc 5v). 16. Computer Interface: Usb 2.0 (usb1.1 Incompatible). 17. Dynamic Frames: 30 Fs Under 600 Lux Brightness. 18. Digital Zoom: Many Stages. 19. Support Micro Sd Card, Up To 32gb (not Included).