FSP 400W Redundant ATX PSU

Get stable and reliable power for your standard or advanced server as well as your storage power systems with the FSP 400W Redundant ATX PSU. It features excellent redundant PSU efficiency, complete protection and is 80 plus Gold Certified.


The FSP 400W Redundant ATX PSU is an industrial level of switching power supply. The power supply comes to offer the total power capacity up to 400 Watts, and uses unique active PFC (Power Factor Correction) circuit design with its high-load electrical components, makes it to be perfectly used in an industrial environment. In addition, with its full range of input and output electrical features, the power supply is ideally the best choice for server, workstation, communication or any other automation applications to use. The product also complies with the latest safety and EMC standards, which is perfectly to meet various regulations worldwide.


  • Remarkable power density
  • Excellent redundant PSU efficiency
  • Operating altitude complies with 5Km certification
  • Well working performance at 50℃ (24 house running)
  • Low ripple and noise
  • Support OTP, OVP, OCP and SCP circuit protection
  • Comply with FCC, CB, TUV, CE and CCC certification or declearation requirement


  • Total Power: 400W
  • Efficiency Level: 80PLUS Gold
  • Voltage Regulation: +3.3V, +12V, +5V, +5SB: ±5%, -12V: ±10%
  • Input Frequency: 47 ~ 63 Hz
  • Input Current: 115V@ 8.0 Amps-rms maximum, 230V@ 4.0Amps-rms maximum
  • Hold-up time: 115V/60Hz 17mSec. Minimum@100% Load, 230V/50Hz 17mSec. Minimum@100% Load
  • Ouput Voltage Regulation: +3.3Vdc output : +3.9 Vdc minimum, + 4.5Vdc maximum, +5Vdc output : +5.7 Vdc minimum, + 6.5Vdc maximum, +12Vdc output : +13.3 Vdc minimum, + 14.5Vdc maximum
  • Ripple & Noise: 115V-rms/230V-rms 5V 20ms Maximum, 115V-rms/230V-rms 12V 20ms Maximum
  • Over current protection: 3.3V:50mV p-p, 5V:50mV p-p, 12V1:120mV p-p, 12V2:120mV p-p, 12V3:120mV p-p, -12V:200mV p-p, 5Vsb:50mV p-p
  • Dimensions: 19 x 15 x 8.6 cm


  • FSP 400W Redundant ATX PSU – Silver x1

Additional information

Weight 3495 g
Dimensions 57.2 × 44.2 × 23 cm

Wattage (W)