This S3 is in excellent working order and has been bench-tested for functionality.

Software Version 4.16

The S3 and 400 are the same model with the same part number.

PLEASE NOTE: DISPLAYS AND PERIPHERALS USED TO DEMONSTRATE FUNCTIONALITY OF THE COMPUTER ARE NOT INCLUDED. What is included is the S3 as shown in the first picture, nothing else.

This computer is part of an autopilot system. To be used as an autopilot, a compatible display, drive unit/motor, compass, and rudder reference sensor are required and these peripherals are not included. It is intended to be used to replace a computer that has gone bad, or to make a solid base for a complete autopilot system.

This computer has some sun fading on the housing but is in otherwise good condition. This is only cosmetic and does not affect functionality.

Please refer to photos for item condition and sale contents.

Thanks for looking!

All items sold at Max Marine Electronics come as you see in the pictures provided, with only the parts and accessories stated in the description section named “What’s Included”. IF YOU DO NOT SEE SOMETHING YOU EXPECT TO BE INCLUDED IN THE DESCRIPTION WE PROVIDE, IT WILL NOT BE INCLUDED. Read all descriptions thoroughly. There are times when a display is used only to show the item being sold is functional and working properly. In this case, these displays are not included. If you have any questions feel free to reach out to Max Marine Electronics. We always want to be transparent with our customers and fully disclose any information regarding the products we sell.

***PLEASE NOTE***Buyers outside the contiguous United States:
We strive to provide accurate shipping quotes at checkout. However, for satellites, radars, large items, or multi-piece shipments, system and carrier limitations may sometimes result in incorrect estimates. If this happens with your order, our team will reach out to you right away to ensure you receive the best possible shipping solution. Your satisfaction is our priority!