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.


...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 51 項產品
Results per page
Description Price Input Voltage Output Voltage Power Rating Output Current Number of Outputs Length Width Depth Mounting Type Efficiency Load Regulation MTBF Line Regulation Ripple And Noise
RS庫存編號 666-7019
製造零件編號SS-250SU APFC F0 80+
BrandSeasonic
HK$441.44
單位
90 → 264V ac ±12 V dc, 3.3 V dc, 5 V dc 250W 2 A, 8 A, 14 A, 17 A, 800 mA 6 150mm 81.5mm 40.6mm Rack Mount 75% ±5% 100000h ±1% ±1%
RS庫存編號 666-7012
製造零件編號SS-400H1U APFC F0 80+
BrandSeasonic
HK$905.80
單位
90 → 264V ac ±12 V dc, 3.3 V dc, 5 V dc 400W 3 A, 20 A, 21 A, 29 A, 800 mA 5 235mm 100mm 40mm Rack Mount 80% ±5% 100000h ±1% ±1%
RS庫存編號 177-797
製造零件編號SS-500ES APFC F3
BrandSeasonic
HK$759.50
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 500W 17 A, 24 A, 825 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% 100000h ±1% ±1%
RS庫存編號 177-775
製造零件編號SS-400ES APFC F3
BrandSeasonic
HK$642.09
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 400W 2.5 A, 17 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% 100000h ±1% ±1%
RS庫存編號 177-769
製造零件編號SS-350ES APFC F3
BrandSeasonic
HK$584.76
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 350W 2.5 A, 17 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% 100000h ±1% ±1%
RS庫存編號 781-7186
製造零件編號1RT45GFS01B10W
BrandSeasonic
HK$1,014.06
單位
220V -12 V, 3.3 V, 5 V, 12 V 450W 2.5 A, 20 A, 47 A, 300 mA 5 150mm 140mm 86mm Panel Mount 90% ±5% >100kh ±1% 1%
RS庫存編號 708-2144
製造零件編號SS-600ES APFC F3
BrandSeasonic
HK$951.67
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 600W 2.5 A, 24 A, 46 A, 800 mA 5 150mm 140mm 86mm Panel Mount 82% ±5% 100000h ±1% ±1%
RS庫存編號 177-810
製造零件編號SS-300ES APFC F3
BrandSeasonic
HK$447.17
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 300W 2.5 A, 17 A, 18 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% 100000h ±1% ±1%
RS庫存編號 881-2915
製造零件編號SSP-430ST Active PFC
BrandSeasonic
HK$695.24
單位
220V 12 V 430W 20 → 30A 1 - - - Desktop 87% - - - -
RS庫存編號 754-2413
製造零件編號SS-500L1U Active PFC
BrandSeasonic
HK$1,297.67
單位
100 → 240V ac -12 V, 3.3 V, 5 V, 5 Vsb, 12 (Combined) V 500W 2.5 A, 20 A, 40 A, 300 mA 1 235mm 100mm 40mm Rack Mount >87% ±5% >100kh ±1% 1%
RS庫存編號 666-7025
製造零件編號SS-400H2U APFC F0 80+
BrandSeasonic
HK$900.55
單位
90 → 264V ac ±12 V dc, 3.3 V dc, 5 V dc 400W 3 A, 20 A, 21 A, 29 A, 800 mA 5 225mm 100mm 70mm Rack Mount 80% ±5% 100000h ±1% ±1%
全新
RS庫存編號 181-2089
製造零件編號SSR-850FX
BrandSeasonic
HK$1,744.63
單位
100 → 240V dc -15 V dc, 3.3 V dc, 5 V dc, 5 VSB V dc, 12 V dc 850W 3 A, 20 A, 70 A, 300 mA 5 140mm 150mm 86mm Panel Mount 90% - 100000h - -
RS庫存編號 136-6052
製造零件編號SSP-250SUB
BrandSeasonic
HK$373.93
單位
230V dc -12 V dc, 3.3 V dc, 5 V dc, 12 V dc 250W 2 A, 14 A, 17 A, 18 A, 800 mA 6 150mm 81.5mm 40.5mm - 85% ±5% >100000h ±1% 1%
RS庫存編號 781-7189
製造零件編號1RT55GFS01B10W
BrandSeasonic
HK$1,159.83
單位
220V -12 V, 3.3 V, 5 V, 12 V 550W 2.5 A, 20 A, 45 A, 300 mA 5 150mm 140mm 86mm Panel Mount 90% ±5% >100kh ±1% 1%
RS庫存編號 177-781
製造零件編號SS-400ET APFC F3
BrandSeasonic
HK$607.60
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 400W 2.5 A, 17 A, 20 A, 800 mA 6 150mm 140mm 86mm Panel Mount 80% ±5% 100000h ±1% ±1%
全新
RS庫存編號 181-2083
製造零件編號SSR-550PX
BrandSeasonic
HK$1,365.60
單位
100 → 240V dc -15 V dc, 3.3 V dc, 5 V dc, 5 VSB V dc, 12 V dc 550W 3 A, 20 A, 45 A, 300 mA 5 140mm 150mm 86mm Panel Mount 92% - 150000h - -
RS庫存編號 136-6053
製造零件編號SSP-300SUB
BrandSeasonic
HK$388.93
單位
12 (ATX Connector)V -12 V dc, 3.3 V dc, 5 V dc, 12 V dc 300W 2 A, 14 A, 17 A, 18 A, 800 mA 6 150mm 81.5mm 40.5mm - 85% ±5% >100000h ±1% 1%
RS庫存編號 781-7192
製造零件編號1RT75GFS01B10W
BrandSeasonic
HK$1,538.04
單位
220V -12 V, 3.3 V, 5 V, 12 V 750W 2.5 A, 20 A, 62 A, 300 mA 5 150mm 140mm 86mm Panel Mount 90% ±5% 100kh ±1% 1%
RS庫存編號 708-2147
製造零件編號SS-600ET APFC F3
BrandSeasonic
HK$911.40
單位
220V ac ±12 V dc, 3.3 V dc, 5 V dc 600W 2.5 A, 24 A, 46 A, 800 mA 5 150mm 140mm 86mm Panel Mount 82% ±5% 100000h ±1% ±1%
RS庫存編號 136-9008
製造零件編號SSPSUPRIME850WPLAT
BrandSeasonic
HK$2,445.91
單位
100 → 240V ac -12 V dc, 3.3 V dc, 5 V dc, 5 VSB V dc, 12 V dc 850W 2.5 A, 20 A, 70 A, 300 mA 5 170mm 86mm 150mm Panel Mount 89% 0.5% 150000h - -