max_card_size_outdoor_gps_units [Backroadmapbooks Wiki]

Many Garmin Outdoor handheld models include an expandable memory slot. A memory card can be inserted into this slot and used to store the following:

  Additional mapping
  BirdsEye imagery
  Photos (on devices with camera)
  GPX files including geocaches, waypoints, routes and tracks

As long as the handheld has the latest version of software, the device can use the maximum card size from the tables below.

Key items regarding the information in the below tables:

  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 please see related content.

Alpha Series

Model	Maximum Capacity	Card Type	Class
Alpha 100	32GB	microSD	Class4 to Class10

Astro Series

Model	Maximum Capacity	Card Type	Class
Astro 220	4GB	microSD	Class 4 to Class 10
Astro 320	32GB	microSD	Class 4 to Class 10
Astro 430	32GB	microSD	Class 4 to Class 10

Colorado Series

Model	Maximum Capacity	Card Type	Class
Colorado 300	4GB	SD (full size)	Class 4 to Class 10
Colorado 400 Series	4GB	SD (full size)	Class 4 to Class 10

Dakota Series

Model	Maximum Capacity	Card Type	Class
Dakota 10	N/A	N/A	N/A
Dakota 20	32GB	microSD	Class 4 to Class 10

eTrex Series

Model	Maximum Capacity	Card Type	Class
eTrex Legend Cx/HCx	4GB	microSD	Class 4 to Class 10
eTrex Venture Cx	4GB	microSD	Class 4 to Class 10
eTrex Vista Cx/HCx	4GB	microSD Class 4 to Class 10
eTrex 20/30	32GB	microSD	Class 4 to Class 10
eTrex 20x/30x	32GB	microSD	Class 4 to Class 10
eTrex Touch 25/35	32GB	microSD	Class 4 to Class 10

GPSmap 60 Series

Model	Maximum Capacity	Card Type	Class
GPSmap 6Cx/CSx	4GB	microSD	Class 4 to Class 10

GPSmap 62 Series

Model	Maximum Capacity	Card Type	Class
GPSmap 62	N/A	N/A	N/A
GPSmap 62s/st	32GB	microSD	Class 4 to Class 10
GPSmap 62sc/stc	32GB	microSD	Class 4 to Class 10

GPSmap 64 Series

Model	Maximum Capacity	Card Type	Class
GPSmap 64	32GB	microSD	Class 4 to Class 10
GPSmap 64s/st	32GB	microSD	Class 4 to Class 10
GPSmap 64sc	32GB	microSD	Class 4 to Class 10

Montana Series

Model	Maximum Capacity	Card Type	Class
Montana 600	32GB	microSD	Class 4 to Class 10
Montana 650 series	32GB	microSD	Class 4 to Class 10
Montana 610 series	32GB	microSD	Class 4 to Class 10
Montana 680 series	32GB	microSD	Class 4 to Class 10

Monterra Series

Model	Maximum Capacity	Card Type	Class
Monterra	64GB	microSD	Class 4 to Class 10

Oregon Series

Model	Maximum Capacity	Card Type	Class
Oregon 200	4GB	microSD	Class 4 to Class 10
Oregon 300	4GB	microSD	Class 4 to Class 10
Oregon 400 series	4GB	microSD	Class 4 to Class 10
Oregon 450 series	32GB	microSD	Class 4 to Class 10
Oregon 550 series	32GB	microSD	Class 4 to Class 10
Oregon 600 series	32GB	microSD	Class 4 to Class 10
Oregon 650 series	32GB	microSD	Class 4 to Class 10
Oregon 700 series	32GB	microSD	Class 4 to Class 10
Oregon 750 series	32GB	microSD	Class 4 to Class 10

Rino Series

Model	Maximum Capacity	Card Type	Class
Rino 520HCx/530HCx	4GB	microSD	Class 4 to Class 10
Rino 610	N/A	N/A	N/A
Rino 650 series	32GB	microSD	Class 4 to Class 10
Rino 700	N/A	N/A	N/A
Rino 750 series	32GB	microSD	Class 4 to Class 10