Replacement Dell Sonic WALL PS-3.3-12-3-DC1 SWITCHING POWER ADAPTER FOR SonicWALL TZ Series Unified Threat Management Firewall. 12VDC 2 PIN 3.0A PLUG. This power supply is UL listed (high quality and tested for it by UL Laboratories) Listing is for Power Supply and AC power cord. This AC Adapter is compatible with: TZ400 TZ300 TZ210 TZ205W TZ105W TZ400 Wireless TZ300 Wireless Soho Wireless APL41-0BA ....and many other SonicWALL Products. Power adapter has been tested by a technician and guaranteed to be working. Included: (1 ea.) Genuine PS-3.3-12-3-DC1 Power Supply (pictured). (1 ea.) AC Power Cord (pictured).