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Internal Power Supply Units (PSU) for Desktops / Switches and Servers

Find Internal PSUs from Akasa, Antec and Startech and other leading brands

Internal power supply units (PSUs) usually cost under £75, even for powerful 630W products. We stock a range of ATX 12V internal supplies from leading brands such as Akasa, Antec and Startech. Search our range now to find a great deal on 430W, 450W, 530W, 630W and 850W+ PSUs. In addition, we carry a range of enterprise products from Cisco and other brands, for PSUs mated to switches and other storage / networking products.

What PSU should I buy for my PC Computer?

While many buyers select ATX supplies with the highest wattage, it's wise to first to narrow down your selection based on a power supply’s efficiency rating. Look for units with “80 Plus” certification - meaning 80 percent the PSU's rated wattage is supplied as power to the PC, with the remaing 20% being lost as heat. 80 plus certification has different ratings within the standard, with 80 plus Gold and Platinum being the most efficient PSUs available.

It's also worth knowing that a desktop system's components - not the power supply itself - dictate its power consumption. So a 1000W supply does not automatically use more power than a 850W power supply, instead depending upon the draw from a PC's hardware, peripherals, motherboard and CPU components under load.

Look also for a PSU with 20+4 pin connectors, meaning that its supply can function either as a 20-pin connector or a 24-pin connector. Larger cooling fans - for example a 135mm fan on a 850 Watt PSU - also move more air while offer lower noise (dB) levels than cheaper small fan equipped units.

Fimally, look for modular power supplies, which offer an advantage over hard-wired versions in that you can add / remove cabling from the PSU to avoid cluttering your PC's internals.

Internal Power Supplies
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HPE ProCurve 620 Redundant External Power Supply
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HPE ProCurve 620 Redundant External Power Supply
HPE ProCurve 620 Redundant External Power Supply
In stock
£1,798.00 Ex VAT
£2,157.60 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: Q114234
Manufacturer / No: Hewlett Packard Enterprise / J8696A

Cisco Front-to-Back Cooling - Power supply - hot-plug /redundant ( plug-in module ) - AC 100-240 V - 750 Watt - for Catalyst 4500-X
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Cisco Front-to-Back Cooling - Power supply - hot-plug /redundant ( plug-in module ) - AC 100-240 V - 750 Watt - for Catalyst 4500-X
Cisco Front-to-Back Cooling - Power supply - hot-plug /redundant ( plug-in module ) - AC 100-240 V - 750 Watt - for Catalyst 4500-X
In stock
£1,026.00 Ex VAT
£1,231.20 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2209764
Manufacturer / No: Cisco / C4KX-PWR-750AC-R=

Cisco - Power supply ( plug-in module ) - AC 100-240 V - 1025 Watt - FRU - for Catalyst 2960X-24, 2960X-48, 2960XR-24, 2960XR-48
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Cisco - Power supply ( plug-in module ) - AC 100-240 V - 1025 Watt - FRU - for Catalyst 2960X-24, 2960X-48, 2960XR-24, 2960XR-48
Cisco - Power supply ( plug-in module ) - AC 100-240 V - 1025 Watt - FRU - for Catalyst 2960X-24, 2960X-48, 2960XR-24, 2960XR-48
In stock
£924.00 Ex VAT
£1,108.80 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2221095
Manufacturer / No: Cisco / PWR-C2-1025WAC=

HPE 5400R 1100W POE+ ZL2 POWER SUPPLY
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HPE 5400R 1100W POE+ ZL2 POWER SUPPLY
HPE 5400R 1100W POE+ ZL2 POWER SUPPLY
In stock
£749.00 Ex VAT
£898.80 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2154632
Manufacturer / No: Hewlett Packard Enterprise / J9829A

Cisco - Power supply ( internal ) - AC 100/240 V - 450 Watt - for Cisco 4451-X
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Cisco - Power supply ( internal ) - AC 100/240 V - 450 Watt - for Cisco 4451-X
Cisco - Power supply ( internal ) - AC 100/240 V - 450 Watt - for Cisco 4451-X
In stock
£669.00 Ex VAT
£802.80 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2221087
Manufacturer / No: Cisco / PWR-4450-AC=

Cisco - Power supply ( plug-in module ) - AC 100-240 V - 640 Watt - FRU - for Catalyst 2960X-24, 2960X-48
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Cisco - Power supply ( plug-in module ) - AC 100-240 V - 640 Watt - FRU - for Catalyst 2960X-24, 2960X-48
Cisco - Power supply ( plug-in module ) - AC 100-240 V - 640 Watt - FRU - for Catalyst 2960X-24, 2960X-48
In stock
£616.00 Ex VAT
£739.20 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2221096
Manufacturer / No: Cisco / PWR-C2-640WAC=

Netgear 1000W Power Brick for RPS4000
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Netgear 1000W Power Brick for RPS4000
Netgear 1000W Power Brick for RPS4000
In stock
£532.35 Ex VAT
£638.82 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2153168
Manufacturer / No: NETGEAR / APS1000W-100NES

Cambrionix EtherSync 8 port USB charge and sync via Ethernet
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Cambrionix EtherSync 8 port USB charge and sync via Ethernet
Cambrionix EtherSync 8 port USB charge and sync via Ethernet
In stock
£398.00 Ex VAT
£477.60 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2528373
Manufacturer / No: Cambrionix / CBRX 1132 - 8 port

Cambrionix EtherSync 4 port USB charge and sync via Ethernet
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Cambrionix EtherSync 4 port USB charge and sync via Ethernet
Cambrionix EtherSync 4 port USB charge and sync via Ethernet
In stock
£371.00 Ex VAT
£445.20 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: 2528372
Manufacturer / No: Cambrionix / CBRX 1132 - 4 port

Netgear APS300W-10000S ProSAFE Redundant Power Supply
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Netgear APS300W-10000S ProSAFE Redundant Power Supply
Netgear APS300W-10000S ProSAFE Redundant Power Supply
In stock
£351.00 Ex VAT
£421.20 Inc VAT
In stock
Product Category: Internal Power Supplies
Misco No: Q302286
Manufacturer / No: NETGEAR / APS300W-10000S
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Items Found: 411
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