Newer Garmin® outdoor handhelds will mount to the computer so that the internal memory can be easily accessed (this is typically known as a mass storage interface) and many older and newer models include an expandable memory slot. The internal memory and an installed SD or microSD card can be used to store the following:
Additional mapping
BirdsEye imagery
Photos (on devices with a camera)
GPX files including geocaches, waypoints, routes and tracks
As long as the device has the latest version of software, it can use the maximum card size from the tables below. For specific instructions on updating your handheld, see - Help with Product Updates .
Key Items Regarding the Information in the Tables Below Interface Options include:
Mass Storage: Can access internal memory.
MTP: Can access internal memory on Windows, but not on Mac.
Garmin Mode: Cannot access internal memory.
When using a card with a larger capacity, if there are too many files and/or large files on the card, the device may draw maps more slowly.
There may be other file limitations that apply to your device. For more information, refer to the section below.
+ Expand all
User Data Limitations of the Alpha® 100 dog tracking handheld
User Data Limitations of the Alpha® 200 or Alpha® 200i dog tracking handhelds
User Data Limitations of the Colorado® 300 or 400 series outdoor handhelds
User Data Limitations of the Dakota™ series outdoor handhelds
User Data Limitations of the eTrex® Touch series outdoor handhelds
User Data Limitations of the eTrex® 10 outdoor handheld
User Data Limitations of the eTrex® 20, 20x, 22x, 30, 30x, or 32x outdoor handhelds
User Data Limitations of the eTrex® SE or eTrex® Solar
File Limitations of the Foretrex® 601 or Foretrex® 701 Ballistic Edition outdoor navigator
File Limitations of the Foretrex® 801 or Foretrex® 901 Ballistic Edition outdoor navigator
User Data Limitations of the GPSMAP® 276Cx outdoor handheld
User Data Limitations of the GPSMAP® 62 or GPSMAP® 78 series outdoor handhelds
User Data Limitations of the GPSMAP® 64 series outdoor handhelds
User Data Limitations of the GPSMAP® 65 series outdoor handhelds
User Data Limitations of the GPSMAP® 66 series outdoor handhelds
User Data Limitations of the GPSMAP® 67 series outdoor handhelds
User Data Limitations of the Montana® 600 series outdoor handhelds
User Data Limitations of the Montana® 700 series outdoor handhelds
User Data Limitations of the Monterra™ outdoor handheld
User Data Limitations of the Oregon® 200, 300, or 400 series outdoor handhelds
User Data Limitations of Oregon® 450, 450t, 550, or 550t outdoor handhelds
User Data Limitations of the Oregon® 600 series outdoor handhelds
User Data Limitations of the Oregon® 700 series outdoor handhelds
User Data Limitations of the Overlander® GPS navigator
User Data Limitations of the Rino® 600 series outdoor radios
User Data Limitations of the Rino® 750 series outdoor radios
Interface and SD Memory Card Requirements Select your device series below to view a table of interface options and card requirements.
NOTE : If your device is not listed here, it may be one of our Garmin legacy models. Legacy models use the Garmin Mode interface and will not mount as a drive when connected to a computer. For memory card information on Garmin legacy models, see - Maximum Memory Card Size for Garmin Legacy Models .
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Alpha 100 32GB microSD Mass Storage Class 4 to Class 10 Alpha 200 and 200i 32GB microSD Mass Storage Class 4 to Class 10 Alpha 200 Plus 32GB microSD Mass Storage Class 4 to Class 10 Alpha 300 and 300i 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Astro 320 32GB microSD Mass Storage Class 4 to Class 10 Astro 430 32GB microSD Mass Storage Class 4 to Class 10 Astro 900 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Colorado 300 4GB SD (full size) Mass Storage Class 4 to Class 10 Colorado 400 4GB SD (full size) Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Dakota 10 N/A N/A Mass Storage N/A Dakota 20 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class eTrex Legend® Cx/HCx 4GB microSD Garmin Mode Class 4 to Class 10 eTrex Venture® Cx 4GB microSD Garmin Mode Class 4 to Class 10 eTrex Vista® Cx/HCx 4GB microSD Garmin Mode Class 4 to Class 10 eTrex 20/30 32GB microSD Mass Storage Class 4 to Class 10 eTrex 20x/30x 32GB microSD Mass Storage Class 4 to Class 10 eTrex 22x/32x 32GB microSD Mass Storage Class 4 to Class 10 eTrex Touch 25/35 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class GPSMAP® 60Cx and 60CSx 4GB microSD Garmin Mode Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class GPSMAP® 62/78 N/A N/A Mass Storage N/A GPSMAP® 62s and 62st 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 62sc and 62stc 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 78s and 78sc 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class GPSMAP® 64 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 64s and 64st 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 64sc 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 64x, 64sx, and 64csx 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class GPSMAP® 65 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 65s 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 66s 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 66st 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 66i 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 66sr 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 67 32GB microSD MTP Class 4 to Class 10 GPSMAP® 67i 32GB microSD MTP Class 4 to Class 10 GPSMAP® 79s 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 79sc 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 86s and 86sc 32GB microSD Mass Storage Class 4 to Class 10 GPSMAP® 86i and 86sci 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Montana 600 32GB microSD Mass Storage Class 4 to Class 10 Montana 650 and 650t 32GB microSD Mass Storage Class 4 to Class 10 Montana 610 and 610t 32GB microSD Mass Storage Class 4 to Class 10 Montana 680 and 680t 32GB microSD Mass Storage Class 4 to Class 10 Montana 700 and 700i 32GB microSD Mass Storage Class 4 to Class 10 Montana 710 and 710i 32GB microSD MTP Class 4 to Class 10 Montana 750i 32GB microSD Mass Storage Class 4 to Class 10 Montana 760i 32GB microSD MTP Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Monterra 64GB microSD MTP Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Oregon 200 4GB microSD Mass Storage Class 4 to Class 10 Oregon 300 4GB microSD Mass Storage Class 4 to Class 10 Oregon 400c, 400i, and 400t 4GB microSD Mass Storage Class 4 to Class 10 Oregon 450 and 450t 32GB microSD Mass Storage Class 4 to Class 10 Oregon 550 and 550t 32GB microSD Mass Storage Class 4 to Class 10 Oregon 600 and 600t 32GB microSD Mass Storage Class 4 to Class 10 Oregon 650 and 650t 32GB microSD Mass Storage Class 4 to Class 10 Oregon 700 32GB microSD Mass Storage Class 4 to Class 10 Oregon 750 and 750t 32GB microSD Mass Storage Class 4 to Class 10
Interface and SD Memory Card Requirements Model Maximum Memory Card Card Type Interface Class Rino 520HCx and 530HCx 4GB microSD Garmin Mode Class 4 to Class 10 Rino 610 N/A N/A Mass Storage N/A Rino 650 and 750t 32GB microSD Mass Storage Class 4 to Class 10 Rino 700 N/A N/A Mass Storage N/A Rino 750, 750t, and 755t 32GB microSD Mass Storage Class 4 to Class 10