This is a Seasonic industrial power supply is 80 PLUS® efficiency rated and it features a high-reliability ball bearing fan. Fully modular cables and easy-swap connectors add a new dimension to its versatility, while the Seasonic Smart and Silent Fan Control (S2FC) system make it a silent performer. These units comply with the latest PFC harmonics (IEC1000-3-2 and EN61000-3-2 standards) and are protected against short circuit, over-voltage and over-power. On the 3.3V rail there is no minimum load requirement for this unit to work properly._x000D_
_x000D_
Read more about Seasonic SS-400H1U 400W 80+ APFC 1U Modular Power Supply on the official Seasonic website_x000D_
_x000D_
Intel EPS1U v2.1 and ATX 12 V v2.2 compliant_x000D_
Forward converter circuit_x000D_
High efficiency and reliability for industrial level_x000D_
Easy-swap connector design_x000D_
40 mm double ball bearing fan_x000D_
Fully modular cables_x000D_
Smart and Silent Fan Control (S2FC)_x000D_
Zero minimum load on 3.3 V rail_x000D_
Short circuit protection on all outputs_x000D_
Over-voltage protection_x000D_
Over-power protection_x000D_
100 % HiPot test_x000D_
100 % Burn-in, high temperature cycled on/off_x000D_
PFC harmonics compliance: IEC1000-3-2 and EN61000-3-2 standards_x000D_