Check the listing for details. NEW A&I Products Hand Held Microscope Powered by USB A-MS398. Condition: New. Listed at 25.00 USD. NEW A&I Hand Held MicroscopeHand held color microscrope. 1.3 maga pixel camera with 50x to 200x magnification. Powered by USB cable. Dim A (1): Body Length: 5.375" Dim B (2): Body Dia: 1.386" Dim C (3): Cord Length: 4.5' Dim D (4): Computer Requirements: Windows 2000 / XP / VISTA / Windows 7 / Windows 8 / Windows 10 Dim E (5): P4 1.8 Or Above Dim F (6): Ram: 256 M Dim G (7): Video Memory: 32M Dim H (8): USB Port: 2.0 Dim I (9): CD-ROM Drive Dim J (10): Specifications: Dim K (11): Pixel Size: 2.8pm x 2.8pm Dim L (12): Image Area: 3.6mm X 2.9mm Dim M (13): Sensing Area: 1/4" Dim N (14): Magnification Ratio: 50x to 200x Dim O (15): Power Supply: 5V From USB Port Dim P (16): Light Source: Off, 4 White LED or 4 Purple LED Includes: Software which allows you to save a snapshot or video on your hard drive. Mount bracket.