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Black rectangular ATX power supply unit with fully modular cable ports and 120mm cooling fan

SAMA

SAMA GT750-Black 750 W ATX 3.1 power supply

SKU CH-F1KZ-7PMY8 MPN GT750-Black

A fully modular 750 W ATX 3.1 power supply with 80 PLUS Gold efficiency, Japanese capacitors and a native 12V-2x6 connector for RTX 4090 graphics cards

  • TypeATX 12V v3.1
  • Maximum Power750 W
  • ModularFull Modular
  • Fans120mm ECO Fan
  • Main Connector1× 20+4pin
  • +12V Rails12V 3.1×1

Certification Series Gold GT Series

Wattage 750W

Color Black

  • 80 PLUS Gold efficiency cuts waste heat and lowers running cost
  • ATX 3.1 compliance with native 12V-2x6 connector powers RTX 4090 class GPUs without adapters
  • Fully modular cables reduce clutter and simplify builds
  • Japanese capacitors deliver stable output and extend unit life
  • 120 mm FDB fan with auto speed control runs quietly under load

Built for ATX 3.1 systems

This 750 W unit meets the ATX 3.1 and PCIe 5.1 specifications, delivering a single 12 V rail rated for the full output. It targets builders who need native 12V-2x6 connections for modern GPUs such as the RTX 4090 without adapters. Japanese capacitors and dual 80 PLUS Gold certification support stable, efficient delivery in high-performance desktops.

Sustained-load behaviour

At 100 % load and 25 °C the design targets over 100 000 hours MTBF excluding the fan, while hold-up time exceeds 11 ms. The 120 mm ECO fan uses fluid-dynamic bearings and auto speed control to balance airflow against noise during long sessions. Full modular cabling reduces internal clutter, helping airflow stay consistent when the system runs hot for hours.

Upgrade path from older units

Replaces ATX 2.x or non-modular supplies that lack native 12V-2x6 cables and PCIe 5.1 compliance. The jump is worthwhile when moving to a GPU that demands the new connector or when efficiency and cable management become priorities for a cleaner, more reliable build.

Highlights

  • 80 PLUS Gold efficiency cuts waste heat and lowers running cost
  • ATX 3.1 compliance with native 12V-2x6 connector powers RTX 4090 class GPUs without adapters
  • Fully modular cables reduce clutter and simplify builds
  • Japanese capacitors deliver stable output and extend unit life
  • 120 mm FDB fan with auto speed control runs quietly under load

Specifications

BrandSAMA
ModelGT750-Black
SeriesGT Series
Part NumberGT750-BKGFFXX1-US
TypeATX 12V v3.1
Maximum Power750 W
ModularFull Modular
Fans120mm ECO Fan
Main Connector1× 20+4pin
+12V Rails12V 3.1×1
PCI-Express Connector2×6+2pin
Power Good SignalATX
Hold-up Time>11ms
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
3 x PCIe (6+2)
6 x SATA
2 x IDE
ColorBlack
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)*1 600mm
(6+2P)+(6+2P)*1 550+150mm
(SATA+SATA+SATA+IDE)*2 500+100+100+100mm
PFCactive PFC
Dimensions140×150×86mm
Weight2.1kg
Package ContentGT750+Cable +accessory+Quick Start Guide

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Questions about this item

How loud does the 120mm ECO Fan get when the 750 W unit runs all day?

The FDB fan uses auto speed control so it stays quiet at low load and only ramps up when the 12 V rail approaches its 750 W limit.

Which cables must I already have to use the native 12V-2x6 connector on this fully modular PSU?

Every cable including the 12V-2x6 lead is supplied in the box; no extra cables or adapters are required.

Will the 20+4 pin main connector and dual 6+2 pin PCIe plugs work with my older motherboard and GPU?

Yes, the 20+4 pin fits legacy 20 pin boards and the 6+2 pin plugs mate with 6 pin or 8 pin graphics cards.

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