PC Power Supplies

PC power supplies, also known as computer power supplies, are pieces of hardware which convert high-power mains electricity into usable DC power, for the components within your desktop computer. They convert AC (alternating current) from the mains to low-voltage, regulated DC (direct current).


Why use a PC power supply?


Power supply units (PSUs) are an essential piece of hardware within a computer as they supply power to all the components within your PC, such as the motherboard or graphics card. Typical PSU voltages are 3.3V, 5V and 12V.


PSUs are there to prevent spikes in the voltage supply and for surge protection.


Where are they installed?


You will find these power supplies in the back of a desktop computer. It is an internal hardware component.


Computer power supplies feature a power cable connector on one side and multiple wires on the other. These wires connect to various devices within the computer to supply power to them, for example, motherboards and hard drives. Computer power supplies also have a cooling fan which expels air out the back of a computer. They also prevent overheating through voltage control. There is usually a power switch at the back and another switch to alter the voltage.


How important is overall wattage?


It is important that you computer PSU covers the necessary wattage that your system requires. You can work this out by roughly adding up the consumption of all your parts. It is best to have an oversized PSU as it will cover your current wattage requirements, with room for extra if you decide to upgrade any of your components.


What is an ATX PSU?


ATX is a specification for motherboards which many PC power supplies meet. This means that the computer PSU fits into an ATX standard case and works alongside an ATX motherboard within the PC. An ATX power supply would be suitable for use in a modular computer as it has a standard case size.


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Nombre de résultats par page
Description Prix Input Voltage Output Voltage Power Rating Output Current Number of Outputs Length Width Depth Mounting Type Efficiency Load Regulation Line Regulation Input Frequency Range Maximum Input Current
N° de stock RS 839-5797
MarqueRS PRO
57,69 €
Each
Unité
200 → 240V ac 12V 500W 41A 5 - - - Encapsulated 85% ±5% ±5% - -
N° de stock RS 839-5801
MarqueRS PRO
83,91 €
Each
Unité
200 → 240V ac 12V 700W 56A 5 - - - Encapsulated 85% ±5% ±5% - -
Nouveau
N° de stock RS 201-1836
MarqueRS PRO
56,37 €
Each
Unité
200 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 500W 0.3A, 2.5A, 17A, 18A, 38A 5 - - - - - - - - -
Nouveau
N° de stock RS 201-1841
MarqueRS PRO
61,36 €
Each
Unité
100 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 300W 0.3A, 2.5A, 15A, 16A, 29A 5 - - - - - - - - -
Nouveau
N° de stock RS 201-1837
MarqueRS PRO
62,76 €
Each
Unité
200 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 500W 0.3A, 2.0A, 15A, 16A, 29A 5 - - - - - - - - -
N° de stock RS 175-3505
MarqueRS PRO
51,24 €
Each
Unité
230V dc 12V dc 400W 30A - 85mm 150mm 140mm Desktop - - - - -
N° de stock RS 175-3506
MarqueRS PRO
81,98 €
Each
Unité
230V dc 12V dc 400W 30A - 85mm 150mm 140mm Desktop 88% - - - -
N° de stock RS 121-7780
MarqueRS PRO
102,26 €
Each
Unité
200 → 240V ac ±12 V dc, 3.3 V dc, 5 V dc 850W 0.3 → 65A 1 - - - DIN Rail >82% - - - -
Nouveau
N° de stock RS 201-1840
MarqueRS PRO
81,98 €
Each
Unité
100 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 700W 0.3A, 2.5A, 17A, 19A, 46A 5 - - - - - - - - -
Nouveau
N° de stock RS 201-1839
MarqueRS PRO
71,72 €
Each
Unité
100 → 240V dc 3.3V, 5V, 5VSB, 12V, -12V 600W 0.3A, 2.5A, 17A, 19A, 54A 5 - - - - - - - - -
N° de stock RS 177-810
Référence fabricantSS-300ES APFC F3
MarqueSeasonic
61,35 €
Each
Unité
220V ac 3.3 V dc, 5 V dc, ±12 V dc 300W 2.5 A, 17 A, 18 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% ±1% - -
N° de stock RS 177-781
Référence fabricantSS-400ET APFC F3
MarqueSeasonic
87,37 €
Each
Unité
220V ac 3.3 V dc, 5 V dc, ±12 V dc 400W 2.5 A, 17 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% ±1% - -
N° de stock RS 177-797
Référence fabricantSS-500ES APFC F3
MarqueSeasonic
107,16 €
Each
Unité
220V ac 3.3 V dc, 5 V dc, ±12 V dc 500W 17 A, 24 A, 825 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% ±1% - -
N° de stock RS 781-7183
Référence fabricant1RT65GFS01B10W
MarqueSeasonic
155,81 €
Each
Unité
220V -12 V, 3.3 V, 5 V, 12 V 650W 2.5 A, 20 A, 54 A, 300 mA 5 150mm 140mm 86mm Panel Mount 90% ±5% ±1% - -
N° de stock RS 880-6881
Référence fabricantEA-300SUG
MarqueSeasonic
74,21 €
Each
Unité
100 → 264V ac 3.3 V dc, 5 V dc, 12 V dc 300W 10 A, 14 A, 25 A - 81.5mm 150mm 40.5mm Surface Mount ≥87% ±5% ±1% 50/60Hz -
N° de stock RS 666-7025
Référence fabricantSS-400H2U APFC F0 80+
MarqueSeasonic
129,60 €
Each
Unité
90 → 264V ac 3.3 V dc, 5 V dc, ±12 V dc 400W 3 A, 20 A, 21 A, 29 A, 800 mA 5 225mm 100mm 70mm Rack Mount 80% ±5% ±1% - -
N° de stock RS 666-7012
Référence fabricantSS-400H1U APFC F0 80+
MarqueSeasonic
124,40 €
Each
Unité
90 → 264V ac 3.3 V dc, 5 V dc, ±12 V dc 400W 3 A, 20 A, 21 A, 29 A, 800 mA 5 235mm 100mm 40mm Rack Mount 80% ±5% ±1% - -
N° de stock RS 177-769
Référence fabricantSS-350ES APFC F3
MarqueSeasonic
78,96 €
Each
Unité
220V ac 3.3 V dc, 5 V dc, ±12 V dc 350W 2.5 A, 17 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% ±1% - -
N° de stock RS 704-3281
Référence fabricantGSM20-PSU
MarqueRF Solutions
32,46 €
Each
Unité
250V ac 12V 12W - 1 88mm 60mm 26mm Stand Alone - - - 50/60Hz -
N° de stock RS 781-7177
Référence fabricant1GT35GF1DBA10W
MarqueSeasonic
95,22 €
Each
Unité
220V -12 V, 3.3 V, 5 V, 12 V 350W 2 A, 12 A, 16 A, 29 A, 300 mA 5 150mm 140mm 86mm Panel Mount 90% ±5% ±1% - -