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Black fully modular ATX power supply with 120mm fan and sleeved cables

SAMA

SAMA GT650-Black 650 W ATX 3.1 Fully Modular Power Supply

SKU CH-01DM-SDFJW MPN GT650-Black

A fully modular ATX 3.1 power supply delivering 650 W with dual Gold efficiency certifications and a native 12V-2x6 connector for RTX 4090 graphics cards

  • TypeATX 12V v3.1
  • Maximum Power650 W
  • ModularFull Modular
  • Fans120mm ECO Fan
  • Main Connector1× 20+4pin
  • +12V Rails12V 3.0×1

Certification Series Gold GT Series

Wattage 650W

Color White

  • Dual Gold efficiency keeps heat and noise low
  • ATX 3.1 compliance powers modern GPUs with stability
  • Native 12V-2x6 connector links RTX 4090 cards without adapters
  • Fully modular cabling cuts clutter for cleaner builds
  • Japanese capacitors and FDB fan deliver lasting reliability

650 W ATX 3.1 Fully Modular PSU

The SAMA GT650-Black delivers 650 W of continuous power through an ATX 3.1 compliant design with full modular cabling. Dual Gold certification from 80 PLUS and Cybenetics confirms high efficiency and low acoustic output. Japanese capacitors provide stable voltage regulation across the single 12 V rail.

Installation uses native 12V-2x6 GPU cable

Only the cables required for the build need to be connected, reducing clutter inside the case. The 120 mm ECO fan features auto speed control and FDB bearing for quiet operation. A hold-up time greater than 11 ms and full protection suite guard against voltage irregularities.

Suits builds with RTX 4090 class graphics

The native 12V-2x6 connector removes the need for adapters when powering modern GPUs. Input range of 100-240 V at 50-60 Hz supports global mains without switching. Systems requiring more than 650 W or additional PCIe connectors should consider higher-capacity units.

Highlights

  • Dual Gold efficiency keeps heat and noise low
  • ATX 3.1 compliance powers modern GPUs with stability
  • Native 12V-2x6 connector links RTX 4090 cards without adapters
  • Fully modular cabling cuts clutter for cleaner builds
  • Japanese capacitors and FDB fan deliver lasting reliability

Specifications

BrandSAMA
ModelGT650-Black
SeriesGT Series
Part NumberGT650-WHGFFXX1-US
TypeATX 12V v3.1
Maximum Power650 W
ModularFull Modular
Fans120mm ECO Fan
Main Connector1× 20+4pin
+12V Rails12V 3.0×1
PCI-Express Connector2×6+2pin
Power Good SignalATX
Hold-up Time>11ms
EfficiencyMeet 80+ Gold Cybenetics Gold
Energy-EfficientMeet 80+ Gold Cybenetics Gold
PSU Noise LevelCybenetics Standard ++
Over Voltage ProtectionYes
Overload ProtectionYes
Input Voltage100-240V
Input Frequency Range50-60Hz
Input Current10A
Output+3.3V@20A, +5V@20A, [email protected] , [email protected] , [email protected]
MTBFOver 100,000 hours at 25? and 100% load excluding the DC Fan.
Connectors1 x 24-pin ATX (24-pin)
2 x ATX 12V/EPS12V (4+4-pin)
1 x 12V-2×6
2 x PCIe (6+2)
6 x SATA
2 x IDE
ColorWhite
Fan LEDNo
Max PSU Length150mm
ProtectionOPP, OVP, UVP, OCP, OTP, SCP, OPP, SIP
Cable Spec(20+4P)*1 600mm
(4+4P)+(4+4P)*1 600+150mm
(12V-2×6)*1 600mm
(6+2P)+(6+2P)*1 550+150mm
(SATA+SATA+SATA+IDE)*2 500+100+100+100mm
PFCactive PFC
Dimensions140×150×86mm
Weight2kg
Package ContentGT650+Cable +accessory+Quick Start Guide

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Questions about this item

Will this PSU fit a standard ATX case and connect to an RTX 4090 without adapters?

Yes, it follows the ATX 3.1 form factor and includes a native 12V-2x6 cable for direct GPU connection.

What efficiency and noise certifications does it carry?

It holds both 80 PLUS Gold and Cybenetics Gold ratings, with Cybenetics Standard++ for acoustic performance.

What protections are built in for voltage spikes or overloads?

Over-voltage and overload protection are both present, and hold-up time exceeds 11 ms at full load.

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