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SonicWall Generation Firewalls

List of SonicWall firewalls by 'Generation'

You can tell which generation you have by the firmware number. The major number in the firmware e.g. 4.x, 5.x, 6.x, 7.x determines the generation.

Gen 7 (Current)
TZ270
TZ370
TZ470
TZ570
TZ670
NSa 2700
NSa 3700
NSa 4700
NSa 6700

Gen 6.5 (some models refreshed)
SOHO 250
TZ350
NSA 2650
NSA 3650
NSA 4650
NSA 5650
NSA 6650

Gen 6
SOHO Wireless
TZ300
TZ400
TZ500
TZ600
NSA 2600
NSA 3600
NSA 4600
NSA 5600
NSA 6600

Gen 5.5+ (entry level refresh)
SOHO

Gen 5.5 (some models refreshed)
TZ 105
TZ 205
TZ 215

Gen 5
TZ 100
TZ 200
TZ 210
NSA 220
NSA 250
NSA 2400
NSA 3500
NSA 4500
NSA 5500