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Black rectangular ATX power supply unit with 80mm fan grille and fixed cables

TOPOWER

TOPOWER TOP-400WB 400 W ATX12V/EPS12V 80 PLUS Bronze power supply

SKU CH-GMBH-5FFYD MPN TOP-400WB

A 400 W ATX12V/EPS12V power supply with 80 PLUS Bronze certification, active PFC, single +12 V rail, two PCIe 6+2 pin connectors and six SATA power connectors

  • ColorBlack
  • TypeATX 12V / EPS 12V
  • Maximum Power400 W
  • Fans1
  • PFCActive
  • Main Connector20+4 Pin
  • 80 PLUS Bronze certification reduces energy waste
  • Single +12V rail delivers stable power to components
  • 20+4 pin main connector fits standard ATX motherboards
  • Two 6+2 pin PCIe connectors support modern graphics cards
  • Six SATA power connectors supply multiple drives

400 W ATX12V/EPS12V Bronze unit

The TOPOWER TOP-400WB delivers 400 W of continuous power through a single +12 V rail and carries 80 PLUS Bronze certification. It fits standard ATX12V and EPS12V layouts and includes Active PFC for efficient operation across 100-240 V input. A single 80 mm fan handles cooling inside the 140 mm deep chassis. Non-modular cabling keeps the build simple for first-time assemblers.

Suits basic desktop and entry-level GPU builds

This unit works for office PCs, home servers or budget gaming rigs that need one mid-range graphics card via the two 6+2 pin PCIe connectors. Six SATA power plugs support multiple drives. Builders planning multi-GPU setups, high-core-count workstations or systems requiring modular cables should look at higher-capacity or fully-modular alternatives instead.

Straightforward ATX installation with fixed cables

The 150 x 140 x 86 mm housing mounts in any standard ATX case using four screws. The 20+4 pin main connector, CPU 4+4 pin and peripheral leads are permanently attached so there are no loose cables to route. Over-voltage and overload protection engage automatically. The only common issue is cable length in full-tower cases where the fixed harness may fall short of bottom-mounted drive bays.

Pontos fortes

  • 80 PLUS Bronze certification reduces energy waste
  • Single +12V rail delivers stable power to components
  • 20+4 pin main connector fits standard ATX motherboards
  • Two 6+2 pin PCIe connectors support modern graphics cards
  • Six SATA power connectors supply multiple drives

Especificações

BrandTOPOWER
ModelTOP-400WB
ColorBlack
TypeATX 12V / EPS 12V
Maximum Power400 W
Fans1
PFCActive
Main Connector20+4 Pin
+12V RailsSingle
PCI-Express Connector2 x 6+2 Pin
SATA Power Connector6
Haswell SupportReady
Max PSU Length140 mm
ModularNo
Energy-Efficient80 PLUS BRONZE Certified
Over Voltage ProtectionYes
Overload ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range50/60 Hz
Power Rating400W
12V Power Connector1 x 4+4 Pin ATX/EPS 12V
Floppy Connector1
Peripheral Connector6
Fans Total Quantity1
Rear Fans Size80mm
Peso de envio1.36 kg
Dimensões da embalagem254 × 203 × 102 mm

Perguntas sobre este artigo

Does my case need to accept a 140 mm long ATX power supply for the TOP-400WB to fit?

Yes, the unit is 140 mm deep, so the case must support at least that length for a standard ATX PSU.

Can I keep my older motherboard that only has a 20-pin main power socket?

The 20+4 pin main connector splits to 20 pins, so it will plug directly into a legacy 20-pin motherboard socket.

How can I verify the 80 PLUS Bronze efficiency is active after installation?

Under typical loads the PSU should draw roughly 15–20 % less AC power than an uncertified 400 W unit, which you can confirm with a plug-in power meter.

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