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The Carson MM-840 eFlex™ is a powerful digital microscope that displays the magnified image right on your computer screen. The impressive 75x/300x effective magnification (on 21″ monitor) allows you to see details of ordinary objects that you never knew existed!

Capture an image to keep with the click of a button. You can even capture close-focus video! The included flexible neck stand with suction cup adapter attached to any smooth surface, or included graduated base with ease.

Max Picture Resolution: 1600 x 1200

Max Video Resolution: 640 x 480

To determine the power, multiply your television screen size by 3.57-14.29. Example: 32″ television would magnify 114-457x (power). Please note, the effective magnification is a combination of the optical system and a high powered digital zoom.

Latest version is compatible with Windows 10/8/8.1/7/Vista/XP SP2+ and all Mac OS. A USB 2.0 or 3.0 port is required. No batteries required.


Download the User Guide: Instruction Manual

Download the Software and Installation Guide: Software Page

MM-840 MM840
Model Name eFlex™
Model Number MM-840
Magnification 75x/300x Effective on 21" Monitor
Weight 0.46 lbs.
Dimensions 8" x 5.75" x 8.5"
MSRP $79.00
Metric Units
Case Quantity 20
Case Dimensions 19.75" x 12.825" x 13.125"
Case Weight 17.5 lbs.
Inner Quantity 5
Inner Dimensions 12.5" x 6" x 9.5"
Inner Weight 3.9 lbs.
Item Box Dimensions 9" x 5.75" x 2.25"
Item Box Weight 0.73 lbs.
UPC 750668-0112-1
20` Container Capacity 11,225
40` Container Capacity 23,042
40` High Cube Capacity 25,723
Metric Units

Domestic FedEx Freight Calculator

All freight calculations exclude the cost of insurance, and are FOB Hauppauge NY. Actual weight may vary slightly.