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Rectangular steel PSU with perforated vents, 120mm fan, semi-modular cables, bronze efficiency badge

Rosewill

Rosewill VSB650 650W 80+ Bronze semi-modular power supply

SKU CH-7XBK-54D8P MPN VSB650

A 650 W ATX 3.1 semi-modular unit with an 80 PLUS Bronze rating, a 120 mm fan, a 12V-2x6 connector and a 140 mm compact chassis

  • TypeATX 3.1 Compatible
  • Maximum Power650 W
  • Fans1 x 120 mm
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle

Options ATX 3.1 80+ Bronze (650W)

  • Ready for latest builds with ATX 3.0 and 3.1 compatibility
  • Clean cable routing thanks to semi-modular design and 80 PLUS Bronze efficiency
  • Powers next-gen graphics cards via native 12V-2x6 PCIe 5.1 connector
  • Fits compact cases with 140 mm depth and 35% smaller chassis
  • Reliable cooling from 120 mm ICB fan and Japanese 105°C capacitor

Compact 650 W ATX 3.1 unit

The Rosewill VSB650 is a 650 W semi-modular power supply built to the ATX 3.1 standard. Its 140 mm chassis fits small-form-factor cases while delivering a single +12 V rail rated for the full 650 W. Builders upgrading to PCIe 5.1 graphics cards get a native 12V-2x6 connector rated for 450 W direct GPU power. The 80 PLUS Bronze design reaches up to 85 % efficiency at typical loads.

Replaces older ATX 2.x supplies

Moving from an ATX 2.x unit adds the 12V-2x6 cable and the 3.1 transient-response profile required by modern GPUs. The jump is worth it when the new graphics card specifies a native 12+4 pin connection or when the old supply cannot sustain the 235 % total power excursion spec. The semi-modular layout keeps cable count low in tight builds. Hold-up time is 16 ms minimum.

Steady output under sustained load

A 120 mm ICB silent fan and a steel shell with large vents manage thermals during long sessions. The 105 °C Japanese capacitor maintains rated output at high internal temperatures. Six protection circuits — OCP, OPP, OTP, OVP, SCP and UCP — engage without interrupting delivery. The single-rail design keeps +12 V voltage stable across the full 650 W range.

Points forts

  • Ready for latest builds with ATX 3.0 and 3.1 compatibility
  • Clean cable routing thanks to semi-modular design and 80 PLUS Bronze efficiency
  • Powers next-gen graphics cards via native 12V-2x6 PCIe 5.1 connector
  • Fits compact cases with 140 mm depth and 35% smaller chassis
  • Reliable cooling from 120 mm ICB fan and Japanese 105°C capacitor

Caractéristiques

BrandRosewill
ModelVSB650
TypeATX 3.1 Compatible
Maximum Power650 W
Fans1 x 120 mm
PFCActive
Main Connector20+4Pin
+12V RailsSingle
SATA Power Connector6
CrossFireCrossFire Ready
Max PSU Length140 mm
ModularSemi-Modular
Hold-up Time16ms min.
EfficiencyUp to 85%
Energy-Efficient80 PLUS BRONZE Certified
Over Voltage ProtectionYes
Overload ProtectionYes
Output+3.3V@18A, +5V@18A, [email protected] , [email protected] , +5VSB@3A
Connectors1 x 20+4-Pin Main Connector
2 x 4+4-Pin ATX12V / EPS12V Connector
2 x 6+2-Pin PCI-E Connector
1 x 12+4-Pin 12V-2x6 Connector
6 x 15-Pin SATA Connector
3 x 4-Pin Peripheral Connector
Poids d’expédition2.06 kg
Dimensions du colis267 × 203 × 112 mm

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Questions sur cet article

Will the 140 mm length fit my small-form-factor case?

The chassis measures 140 mm long by 150 mm wide by 86 mm high, so verify your case clearance against those dimensions before ordering.

Which cables must I connect during installation and which can stay in the box?

The 20+4-pin main and both 4+4-pin EPS cables are permanently attached; plug the 12V-2x6, the two 6+2-pin PCIe, the six SATA and the three peripheral cables only if your build needs them.

When should I plan to replace the 120 mm fan?

The ICB fan uses a 105 °C rated Japanese capacitor; under normal loads expect several years of service, but replace it if bearing noise appears or airflow drops noticeably.

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