max_card_size_automotive_gps_units [Backroadmapbooks Wiki]

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
All devices that are compatible with Garmin Express will require an SD card with at least 4 GB of space to update the maps.

Garmin Legacy Models

Model	Maximum Capacity	Card Type	Class
Camper/RV 660/760	32 GB	microSD	Class 2 to 10
Camper/RV 770	32 GB	microSD	Class 2 to 10

dezl and dezlCam series

Model	Maximum Capacity	Card Type	Class
dezl 560, 570, 580, 760, 770, 780	32 GB	microSD	Class 2 to 10
dezlCam (Camera SD card slot)	64 GB	microSD	Class 10
dezlCam (Map SD card slot)	32 GB	microSD	Class 2 to 10

64 GB cards will often be labeled SDXC (Extended Capacity). SD, SDHC and SDXC cards must be formatted as FAT32.
If you are using a 64 GB card and unable to format it as FAT32, it is recommended to use a 32 GB card instead.

Garmin Dash Cam series

Model	Maximum Capacity	Card Type	Class
Garmin Dash Cam 10 and 20	32 GB	microSD	Class 10
Garmin Dash Cam 30, 35, 45, 55, and 65	64 GB	microSD	Class 10

Garmin Drive series

Model	Maximum Capacity	Card Type	Class
Garmin Drive 5, 6, 40, 50, 60, 51, 61	32 GB	microSD	Class 2 to 10
Garmin DriveAssist 50, 51 (Camera SD card slot)	64 GB	microSD	Class 10
Garmin DriveAssist 50, 51 (Map SD card slot)	32 GB	microSD	Class 2 to 10
Garmin DriveLuxe 50, 51	32 GB	microSD	Class 2 to 10
Garmin DriveSmart 5, 6, 7, 50, 60, 70, 51, 61	32 GB	microSD	Class 2 to 10
Garmin DriveTrack 70, 71	32 GB	microSD	Class 2 to 10

nuvi series

Model	Maximum Capacity	Card Type	Class
nuvi 30, 40, 50	32 GB	microSD	Class 2 to 10
nuvi 42, 44, 52, 54	32 GB	microSD	Class 2 to 10
nuvi 55, 56, 65, 66	32 GB	microSD	Class 2 to 10
nuvi 57, 58, 67, 68	32 GB	microSD	Class 2 to 10
nuvi 200, 250, 260, 270	32 GB	SD	Class 2 to 10
nuvi 200W, 250W, 260W	32 GB	SD	Class 2 to 10
nuvi 205, 255, 265, 275	32 GB	SD	Class 2 to 10
nuvi 255W, 265W, 285W	32 GB	SD	Class 2 to 10
nuvi 500, 550	32 GB	microSD	Class 2 to 10
nuvi 750, 760, 780	32 GB	SD	Class 2 to 10
nuvi 755, 765, 775, 785	32 GB	SD	Class 2 to 10
nuvi 1100, 1200, 1250, 1260	32 GB	microSD	Class 2 to 10
nuvi 1300, 1350, 1370, 1390, 1490, 1690	32 GB	microSD	Class 2 to 10
nuvi 2200, 2250	32 GB	microSD	Class 2 to 10
nuvi 2300, 2350, 2360, 2370	32 GB	microSD	Class 2 to 10
nuvi 2450, 2460	32 GB	microSD	Class 2 to 10
nuvi 2455, 2475, 2495	32 GB	microSD	Class 2 to 10
nuvi 2457, 2497	32 GB	microSD	Class 2 to 10
nuvi 2557, 2577, 2597, 2598	32 GB	microSD	Class 2 to 10
nuvi 2555, 2595	32 GB	microSD	Class 2 to 10
nuvi 2539, 2559, 2589, 2599	32 GB	microSD	Class 2 to 10
nuvi 2639, 2689, 2699	32 GB	microSD	Class 2 to 10
nuvi 2757, 2797, 2798, 2789	32 GB	microSD	Class 2 to 10
nuvi 3450, 3490	32 GB	microSD	Class 2 to 10
nuvi 3550, 3590	32 GB	microSD	Class 2 to 10
nuvi 3597	32 GB	microSD	Class 2 to 10
nuvi 3750, 3760, 3790	32 GB	microSD	Class 2 to 10

nuvi 295W, 800, 805 series

Model	Maximum Capacity	Card Type	Class
nuvi 295W	8 GB	microSD	Class 2 to 10
nuvi 850, 880, 855, 885	8 GB	microSD	Class 2 to 10

nuvi 300, 600, 5000 series

Devices in the nuvi 300, 600, and 5000 series can use an SD card larger than 2 GB, but will not be able to read files larger than 2 GB from the SD card.

Model	Maximum Capacity	Card Type	Class
nuvi 350, 360, 370	32 GB	SD	Class 2 to 10
nuvi 650, 660, 670, 680	32 GB	SD	Class 2 to 10
nuvi 5000	8 GB	SD	Class 2 to 10

nuviCam series

Model	Maximum Capacity	Card Type	Class
nuviCamLMTHD (Camera SD card slot)	64 GB	microSD	Class 10
nuviCamLMTHD (Map SD card slot)	32 GB	microSD	Class 2 to 10

64 GB cards will often be labeled SDXC (Extended Capacity). SD, SDHC and SDXC cards must be formatted as FAT32.
If you are using a 64 GB card and unable to format it as FAT32, it is recommended to use a 32 GB card instead.

StreetPilot series

i-Series devices and the StreetPilot c300 do not support the SDHC (High Capacity) cards. All other devices support SDHC cards.

Model	Maximum Capacity	Card Type	Class
StreetPilot c300 series	2 GB	SD	Class 2 to 10
StreetPilot c500 series	4 GB	SD	Class 2 to 10
StreetPilot i-Series	2 GB	SD	Class 2 to 10
StreetPilot 7200/7500	2 GB	SD	Class 2 to 10

zumo series

zumo 220, 350, 390, 590, and 660	32 GB	microSD	Class 2 to 10
zumo 395, 396, and 595	64 GB	microSD	Class 2 to 10
zumo 400 and 500 series	4 GB	SD	Class 2 to 10
zumo 665	8 GB	microSD	Class 2 to 10