Humminbird LakeMaster Great Lakes Edition Digital GPS Lake Maps, Micro SD Card, Version 4
Quick take
Humminbird LakeMaster Great Lakes Edition Version 4 is a Micro SD map card built to add detailed lake charts to compatible Humminbird GPS/chartplotters. It’s a strong fit for anglers focused on the Great Lakes and nearby waters who want easier-to-read contour detail and shallow-water shading. The biggest caveat is that it is not PC compatible, and your exact Humminbird model must be compatible for depth charts to show correctly.
Pros and cons
Pros
- Great Lakes focused coverage, including high-definition mapping for many local areas
- Detailed depth contours with shallow-water shading (adjustable range up to 30 feet)
- Map files load via Micro SD, with an adapter included
- Can integrate with Minn Kota i-Pilot Link for contour-guided automated control (i-Pilot Link sold separately)
Cons
- Requires a compatible Humminbird GPS unit, otherwise it may not display the intended depth charts
- Micro SD cards are smaller and can be easy to mis-handle, so careful handling matters
What buyers think
Buyer feedback is mixed but generally points to two main themes: when the card is compatible and used in the intended area, people tend to value the chart detail and practical navigation benefits. Several buyers describe strong usefulness for specific Great Lakes regions and highlight that the maps can make trip planning easier. At the same time, there is limited but notable feedback that some users did not get the expected depth chart display, which reinforces the importance of confirming compatibility with your exact Humminbird model and setup.
What this map card is for
This LakeMaster Great Lakes Edition Version 4 is made to expand what your compatible Humminbird GPS/chartplotter can show on-screen. Instead of relying only on live sonar for every decision, it’s designed to bring preloaded lake mapping, including contour detail and shoreline/depth references, so you can plan routes, target spots, and understand bottom structure more quickly.
Key features that matter on the water
Great Lakes coverage and high-definition mapping
The Great Lakes Edition Version 4 is built around lakes and waters across Michigan, Indiana, and Ohio, with extensive coverage that includes many lakes in high definition. It also includes updates versus the prior version, including refreshed and additional coverage for specific Great Lakes areas.
Shallow-water shading and easy contour reading
A practical highlight is the shallow-water shading, which uses an adjustable range up to 30 feet. This can help anglers and boaters visually separate shallows from deeper areas at a glance, which is especially useful when you are trying to make quick calls near reefs, bars, or drop-offs.
Water level synchronization
The mapping supports syncing depth contours and shorelines with actual water levels for lakes, reservoirs, and rivers. In real-world terms, this is meant to keep the charts aligned with the conditions you are boating in.
Optional integration with minn kota i-Pilot link
If you have Minn Kota i-Pilot Link installed (sold separately), LakeMaster mapping can be used to follow selected depth contour lines for more precise automated boat control. This is a niche feature, but it can be a big deal for people who already run i-Pilot Link and fish the same contours repeatedly.
Compatibility and setup essentials
This Micro SD map card is intended strictly for use in your Humminbird GPS unit. It includes a Micro SD card and also comes with a full-size adapter. It is compatible with all GPS-equipped HELIX, SOLIX, ONIX, and ION series models, plus select 600-1100 series models.
Two important buyer cautions:
- Confirm your exact Humminbird model before purchasing, since map display issues can happen if the unit is not supported as intended.
- Don’t treat the card like a computer storage drive. The card is not PC compatible, and accessing it on a computer can risk corruption.
Pros and cons for different kinds of buyers
Best for
- Great Lakes anglers who want rich contour detail beyond what sonar alone provides
- Humminbird owners with compatible HELIX, SOLIX, ONIX, or ION units, or supported 600-1100 series models
- Boaters who fish around shallow areas and benefit from shading that highlights shallows
- People using (or planning to use) Minn Kota i-Pilot Link for contour-guided navigation
Who should avoid it
- If you need a map card for a non-compatible brand or a non-supported Humminbird model
- If you want to preview or manage map files on a computer, since this card is intended for Humminbird use
- If you are uncomfortable handling small Micro SD media carefully, since handling issues are a common practical concern
Is it worth the money?
Whether this is a good buy mostly depends on your match with the Humminbird unit lineup and your fishing geography. If you have a compatible Humminbird GPS and you regularly fish the Great Lakes regions covered by this card, the value proposition is the detailed contour and shallow-water charting that can speed up trip planning and spot selection. If you only boat occasionally, fish mostly close to shore with little need for contour planning, or you are not sure your exact model is supported, the risk of disappointment goes up, since the whole point is the depth-chart display.
FAQs
What Humminbird models are compatible with this LakeMaster Great Lakes Version 4 map card?
It’s compatible with all GPS-equipped HELIX, SOLIX, ONIX, and ION series models, and select 600-1100 series models. Make sure your exact model is supported before purchasing.
Does this map card work on a computer?
No. It’s intended for use in the Humminbird GPS unit, and accessing the map files on a computer can risk corruption.
What makes the Great Lakes Version 4 different from older versions?
Version 4 includes updated and additional high-definition coverage, including refreshed shallow-water areas and full coverage updates for several Great Lakes regions.
Can this map card be used with Minn Kota i-Pilot Link?
Yes, when i-Pilot Link is installed (sold separately). LakeMaster mappings can be used for contour line following and more precise automated boat control.
Why do some buyers report issues seeing depth charts?
The most common reason is compatibility or setup mismatch. Since this card is designed for specific Humminbird models and intended usage in the unit, confirming your model support and correct insertion helps avoid “GPS works but no depth chart” problems.
Bottom line
Humminbird LakeMaster Great Lakes Edition Version 4 is a purpose-built Micro SD map card for compatible Humminbird chartplotters, with a focus on detailed Great Lakes contour charts and shallow-water visualization. If you’re in the covered region and your model is supported, it can meaningfully improve how quickly you plan and navigate on the water. Just don’t buy it expecting universal use, and verify compatibility before you rely on it for depth charting.
Specifications
| Product Title | Humminbird LakeMaster Great Lakes Edition Digital GPS Lake Maps, Micro SD Card, Version 4 |
|---|---|
| Category | Electronics > Car & Vehicle Electronics > Marine Electronics > Marine GPS Chartplotters |
| Manufacturer | Humminbird |
| Model Name | LakeMaster Great Lakes V4 |
| Color | Black |
| Material | Plastic |
| Size | LakeMaster |
| Item Weight | 3.2 ounces |
| Item Package Dimensions L x W x H | 7.52 x 5.39 x 1.22 inches |
| Package Weight | 0.16 Kilograms |
| Item Dimensions LxWxH | 8 x 6 x 1 inches |
| Brand Name | Humminbird |
| Warranty Description | 30-day manufacturer |
| Suggested Users | mens |
| Number of Items | 1 |
| Part Number | 600015-7 |
| Style | Lakemaster |
| Included Components | Includes micro SD card with full size adapter and water resistant SD card carrying case. |
| Sport Type | Boating, Fishing |
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