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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

  • Max wattage750 W
  • Modular cablingFull Modular
  • Fan configuration120 mm ECO Fan
  • Main power connector1× 20+4pin
  • 12V rails12 V 3.1 × 1
  • PCIe power connectors2 × 6+2pin

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.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $53.99
Cheaper than about 89% of the 10,869 comparable items (median $142.99).
Max wattage 750 W
Lower than about 60% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSAMA
Product lineGT Series
Model nameGT750-Black
Part numberGT750-BKGFFXX1-US
Product typeATX 12 V v3.1
Product colorBlack
Ports & slots
PCIe power connectors2 × 6+2pin
Output type+3.3 V@20A, +5 V@20A
Connection types1 × 24-pin ATX (24-pin)
2 x ATX 12 V/EPS12 V (4+4-pin)
1 × 12 V-2 × 6
3 x PCIe (6+2)
6 x SATA
2 x IDE
Power
Max wattage750 W
Modular cablingFull Modular
Main power connector1× 20+4pin
12V rails12 V 3.1 × 1
Power good signalATX
Power hold-up time>11 ms
Overvoltage protectionYes
Overload protectionYes
Supply voltage100-240 V
AC input frequency50-60 Hz
Rated input current10A
Built-in protectionOPP, OVP, UVP, OCP, OTP, SCP, OPP, SIP
Power factor correctionActive PFC
Size & build
Product dimensions140 × 150 × 86 mm
Product weight2.1kg
Compatibility
PSU length limit150 mm
In the box
Included itemsGT750+Cable +accessory+Quick Start Guide
More details
Fan configuration120 mm ECO Fan
Mean time between failuresOver 100,000 h at 25? and 100% load excluding the DC Fan.
Fan LEDNo

Other versions of this model

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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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