Power Supplies

R0X35A#0D1 - HPE Aruba Networking Aruba 6400 power supply unit 1800 W Aluminium

£2,794.39 Inc. VAT
£2,328.66 Excl. VAT
(0 Reviews)

R0X7F Dell PowerConnect MPS600 600-Watts Power Supply

£129.59 Inc. VAT
£107.99 Excl. VAT
(0 Reviews)

R101K Dell 400-Watts Redundant Power Supply for PowerEdge T310

£218.78 Inc. VAT
£182.32 Excl. VAT
(0 Reviews)

R1T38A - HPE Aruba Networking DL360 Gen10 500W Spare PSU

£1,108.64 Inc. VAT
£923.87 Excl. VAT
(0 Reviews)

R215C Dell 300-Watts Power Supply for Inspiron 620 660 Vostro 260 270

£101.11 Inc. VAT
£84.26 Excl. VAT
(0 Reviews)

R250-PSU-850W Cisco 850-Watts Power Supply for the UCS C250 M2

£86.06 Inc. VAT
£71.72 Excl. VAT
(0 Reviews)

R250-PSU2-850W Cisco 850-Watts Power Supply for UCS C250 M2 Rack Server

£184.91 Inc. VAT
£154.09 Excl. VAT
(0 Reviews)

R3B79A - HPE 1700W Power Supply Kit

£3,695.33 Inc. VAT
£3,079.44 Excl. VAT
(0 Reviews)

R4S14A - HPE 1600W Flex Slot Platinum power supply unit Silver

£1,462.31 Inc. VAT
£1,218.59 Excl. VAT
(0 Reviews)

R6P6M Dell 1600-Watts Power Supply for PowerEdge C6300 / XC630

£271.08 Inc. VAT
£225.90 Excl. VAT
(0 Reviews)

R7535 Dell 450-Watts Redundant Power Supply for PowerEdge 1600SC

£272.72 Inc. VAT
£227.27 Excl. VAT
(0 Reviews)

Power Supplies for Desktop PCs, Workstations and Servers

The right Power Supply is more than a wattage rating printed on a specification sheet. It determines how electrical power reaches the components inside a computer and must match the system's physical design, connector requirements, and expected load. From replacing an aging desktop PSU to sourcing a proprietary server power module, choosing compatible hardware is essential.

Computer Power Supplies for Every Build

For desktop computers, ATX power supplies are a common choice, while compact systems may require SFX, TFX, Flex ATX, or other form factors. Gaming PCs and high-performance workstations can demand substantial power capacity and dedicated GPU connectors, whereas office systems may have considerably lower requirements.
Features such as modular cabling, 80 PLUS efficiency, active PFC, PCIe power connectors, EPS connectors, multiple output rails, and quiet cooling can influence the suitability of a PSU for a particular build. Modular power supplies are especially useful when clean cable management and airflow are priorities.
Enterprise hardware introduces different requirements. Server power supplies can use hot-swappable modules, redundant configurations, and proprietary form factors. In compatible servers, dual or multiple PSUs can provide power redundancy, allowing maintenance or a failed module to be handled without necessarily taking the entire system offline.

Leading Power Supply Brands

Our selection can include products from well-known manufacturers such as Corsair, Seasonic, EVGA, Thermaltake, Cooler Master, be quiet!, SilverStone, FSP, Antec, ASUS, Super Flower, Delta, Dell, HPE, Lenovo, and Intel. These brands cover consumer PCs, gaming systems, professional workstations, rack servers, and enterprise computing hardware.

Match the PSU to the Hardware

When selecting a replacement power supply, compatibility goes beyond wattage. Check the form factor, input voltage, output ratings, motherboard connector, CPU power connection, graphics-card requirements, drive connectors, dimensions, and manufacturer-specific specifications before installation.
Browse our Power Supplies collection for desktop PSUs, modular units, server power modules, replacement supplies, and specialized power hardware. Whether you're building a new PC, upgrading a workstation, or maintaining server equipment, find a PSU suited to the hardware it needs to power.