Thermaltake is an organization based mostly in Taiwan that makes a speciality of designing and manufacturing pc {hardware} parts and equipment. Established in 1999, the corporate’s product vary consists of thermal options equivalent to CPU coolers and circumstances and energy provide items, keyboards, and mice. Thermaltake operates globally and has a presence in a number of markets, serving a buyer base that ranges from informal pc customers to {hardware} lovers. The corporate’s merchandise are topic to numerous trade certifications and requirements.

Recognized for its various portfolio, starting from circumstances and coolers to energy provide items (PSUs), the corporate has a popularity for merging aesthetics with performance. Among the many lineup of their energy provides, the Toughpower GF A3 750W PSU stands as a outstanding providing geared toward lovers who demand a balanced mixture of reliability, efficiency, and power effectivity.

As PSUs are the spine of any computing system, offering secure and environment friendly energy is paramount. Thermaltake’s Toughpower GF A3 750W PSU goals to just do that whereas including modularity and aesthetic enchantment into the combo. It’s designed to focus on the majority of superior PC builders, which implies it’s going to additionally must compete in opposition to myriads of comparable merchandise for a chunk of that saturated market pie. On this overview, we’ll dissect this energy provide’s options, efficiency, and general worth proposition to find out whether or not it meets trendy PC builds’ calls for.

Thermaltake Toughpower GF A3

Energy specs ( Rated @ 45 °C )
RAIL +3.3V +5V +12V +5Vsb -12V
MAX OUTPUT 20A 20A 62.5A 3A 0.3A
100W 750W 15W 3.6W
AC INPUT 100 – 240 VAC, 50 – 60 Hz
MSRP $98 – Currently $91 at Amazon

Packaging and Bundle

The Thermaltake GF A3 750W PSU arrived encased in a cardboard field of considerable thickness with a minimalist but elegant exterior aesthetic. The important options of the ability provide unit are offered clearly on the field’s exterior. The unit is securely enveloped contained in the field in high-density packaging foam, offering ample safety in opposition to potential transit damages.

The accent bundle accompanying the Thermaltake Toughpower GF A3 750W is primary however purposeful, consisting solely of the indispensable AC energy cable, mounting screws, and a modest assortment of cable ties. Given the market section this unit targets, together with cable ties is a sensible contact relatively than an added luxurious.

Because the Toughpower GF A3 750W is a completely modular unit, a bundle of cables is equipped in a separate bag. All of the cables are black, and most are product of flat, ribbon-line wires, besides the 12VHPWR cable that options the standard nylon sleeving. Notice that Thermaltake declares that the utmost wattage of the 12VHPWR connector is 300 Watts for this mannequin.

Thermaltake Toughpower GF A3
Connector kind Hardwired Modular
ATX 24 Pin 1
EPS 4+4 Pin 2
EPS 8 Pin
PCI-E 5.0 1
PCI-E 8 Pin 4
Molex 4
Floppy 1

The Thermaltake Toughpower GF A3 750W PSU

Exterior Look

The exterior visage of the Thermaltake Toughpower GF A3 750W PSU is distinctly marked by its matte black end, lending the unit a stealthy {and professional} look. The chassis includes a dashed line sample punched on all sides, including a layer of aesthetic complexity. With a 140 mm depth, the chassis dimensions conform to the ATX design pointers, making certain compatibility with ATX-compliant circumstances.


Electrical specs and certification particulars are displayed on a sticker on the chassis’s prime aspect. Ornamental stickers embellish each side of the chassis with out overwhelming the design, sustaining the unit’s smooth aesthetic. There’s a zero-RPM fan change on the rear of the unit, along with the usual energy cable receptacle and on/off change. The connectors for the modular cables are featured on the entrance of the chassis. These connectors take lower than half of the floor space and are located adjoining to a printed color-coded legend.


Inner Design

Thermaltake is utilizing considered one of its personal followers for the cooling wants of the Toughpower GF A3 750W PSU. The TT-1225 (or BDH12025S) fan is a 120 mm mannequin with a fluid dynamic bearing engine. It has a most velocity of 1500 RPM.

The OEM answerable for creating the Toughpower GF A3 750W PSU is Nice Wall, the designs of which we regularly discover inside mainstream and high-end items as of late. We’ve not encountered this specific platform earlier than. Contemplating the 300-watt 12VHPWR score, it will appear that Nice Wall has particularly developed it to compete within the mid-range section of the market whereas offering ATX 3.0 compliance.


The filtering stage of the Toughpower GF A3 750W PSU is honest, with 4 Y capacitors, two X capacitors, and two filtering inductors. Two input-rectifying bridges may be discovered with a small heatsink sandwiched between them. Two Rubycon 420V/390μF capacitors and a fairly large filtering inductor are the passive parts of the APFC circuitry. The energetic parts of the APFC circuit, two MOSFETs and a booster diode, share the identical heatsink as the first stage switchers.

The 2 inversion transistors type a typical half-bridge LLC inversion topology. The 2 inversion transistors are WML28N65SF2 from WAYON, a producer we’ve got solely recently encountered products from. Sadly, as soon as once more, there are not any datasheets of those specific chips to be discovered on-line.

Six transistors generate the primary 12V line after the secondary aspect of the transformer. The transistors are the 4NA1R4C-A from Jinlibo Electronics. DC-to-DC circuits generate the three.3V and 5V traces, all the elements of that are put in on the primary board itself. That is atypical because the overwhelming majority of the designs have the DC-to-DC circuits on a vertical daughterboard. Superior Energy Electronics Corp provides the 4 fundamental switchers (4024GEMT) that generate the three.3V and 5V traces, with an ANPEC APW7164 controlling every. All secondary aspect capacitors, polymer and electrolytic alike, are equipped by CapXon, a extremely respected Taiwanese producer.


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