The AK-U4-400 Ultimate series power supply is a reliable power source for computers with a powerful graphics card. It is ideal for the most popular computer sets.
Max power |
Fan dimensions |
Cable length |
Warranty |
AK-U4-400 power supply unit provides 400 W of continuous power. The product is characterized by effective cooling during top speed operation, which is solved by a built-in 120 mm fan. The efficiency of the fan is ensured by a speed monitoring controller depending on the components temperature. Moreover, a wide range of cables enables connection of up to 9 devices equipped with SATA / MOLEX / MINI-MOLEX sockets and a powerful graphics card with two PCI-Express power sockets. In addition, the extended warranty ensures the reliability of the power supply.
High efficiency of the power supply is guaranteed by its compliance with the 80 PLUS® Bronze standard. The certificate ensures that at least 85% of electricity is transferred to the powered components. This has a direct impact on energy savings as well as lower heat output.
The power supply is equipped with a number of protections and an active PFC filter. They provide protection, prevent components from damage and stabilize the power supply, so it runs without unwanted interference.
OVP protection — Protects the power supply against too high a voltage on the output line. It is activated when the voltage increases by 15% from the nominal value.
OCP protection — Protects computer components from too high output current. In case of an overload, one of the lines is automatically switched off.
OPP protection — Protects against power supply overload.
OTP protection — Protects against overheating of the PSU caused by overload and insufficient air circulation.
UVP protection — Protects against too low voltage on the output lines.
SCP protection — Protects against short circuit.
EPS12V connector |
PCI Express connector |
SATA conectors |
Molex conectors |
The power supply is supplied with a wide selection of plugs. In addition to the universal 24-pin MPC connector, the set includes two MOLEX connectors, six SATA connectors for Serial ATA HDDs and optical discs, and one mini-MOLEX connector. Additionally, the set includes PCI-E 6-pin connector and PCI-E 6+2-pin connector for graphics cards and one EPS12V 4+4-pin connector for powering motherboards. In addition, the power supply has a manual switch that allows user to safely cut off the power supply without having to unplug the power cord from the mains.
