We have safely upgraded from the TZ 400 and over time it's really cheaper than the old ones. For those in doubt, the TZ 270 has a lot more storage capacity compared to previous lower-end SonicWall models like the TZ 300 and TZ 400. It's a little slower to boot, but it's definitely worth the cost savings. If you're still using older generation SonicWalls, consider using the new generation just to save money.
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