Dahua Technology PFM321D, Power supply, Indoor, Dahua, Black, CE, FCC, UL-VI, Wired Dahua Technology PFM321D. Type: Power supply, Placement supported: Indoor, Brand compatibility: Dahua. Connectivity technology: Wired. Input voltage: 100 - 240 V, Input frequency: 50 - 60 Hz, Output voltage: 12 V. Width: 84 mm, Depth: 41 mm, Height: 26 mm