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  ComX Computers - since 2002 • home » computer hardware Mon 14 Sep, 2026View enquiry cart
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Power supply unit / PC PSU

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There are 144 products in Power supply unit / PC PSU
Displaying products 1 - 50 of 144 products
R 290.00
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M-Link 450W Power Supply with SATA Connectors
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R 331.00
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Mlink 450W ATX Power Supply unit - Matt Black
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R 435.00
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Antec Atom V350 Non-Modular Power Supply
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R 450.00
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Aerocool VX Plus 500W ATX12V ver 2.3 Power Supply unit, 1x 24 pin Motherboard, 1x 4+4 pin 12V CPU 1x 6+2 pin VGA, 3x SATA, 3x PATA, 1x FDD
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R 459.00
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Unique 400 Watt Power Supply unit - OEM, 1x 20 + 4 pin main connector, 1x P4 4 pin 12V connectors, 3x 4 pin molex Peripheral connectors, 3x SATA connectors, 1x floppy Drive connector
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R 466.00
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Antec Atom V450 450W Non-Modular Power Supply: 450W Output, CircuitShield(TM) protections (OPP / OVP / UVP / SCP), 120mm silent fan, Thermal Manager for optimal heat and noise management, Non-modular design, Input: 230Vac, 4A, 47-63Hz, Output: +3.3V / 16A, +5V / 15A
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R 471.00
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Antec Atom V450 450W Non-Modular Power Supply: 450W Output, CircuitShield(TM) protections (OPP / OVP / UVP / SCP), 120mm silent fan, Thermal Manager for optimal heat and noise management, Non-modular design, Input: 230Vac, 4A, 47-63Hz, Output: +3.3V / 16A, +5V / 15A
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R 516.00
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Cooler Master Elite 300W PFC Active Power Supply without Cable
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R 516.00
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Aerocool Lux Bronze 650W ATX Power Supply unit, ATX 24 pin, 1x 4+4 pin CPU, 5x SATA, 4x PATA, 2x PCI-e 6+2 pin, 80Plus 230V EU Bronze Certified for up to 88%+ efficiency, Built-In apfc, Silent 12cm Black fan, ATX12V VER.2.4
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R 522.00
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Cooler Master Elite Nex W600 230V A / EU Black cable & Mesh ATX Power Supply unit, Active PFC, ATX 12V ver. 2.41, 120mm Fan, Sleeve fan bearing, 85% efficiency, 1x ATX 24 pin connectors, 1x EPS 8 pin / 4+4 pin connectors, 5x SATA connectors, 3x Peripheral 4 pin connectors, 2x PCI-e 6+2 pin connectors
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R 529.00
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Mecer 300W 85 Plus Energy Star 5.0 Universal ATX EPS2.31 (SABS)
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R 558.00
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Cooler Master Elite Nex W700 230V a / EU Black cable & Mesh ATX Power Supply unit, Active PFC, ATX 12V ver. 2.41, 120mm Fan, Sleeve fan bearing, 85% efficiency, 1x ATX 24 pin connectors, 2x EPS 8 pin / 4+4 pin connectors, 5x SATA connectors, 3x Peripheral 4 pin connectors, 2x PCI-e 6+2 pin connectors
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R 567.00
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Armaggeddon Voltron 250 Black 250W Bronze S Power Supply
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R 567.00
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Armaggeddon Voltron White 250 Bronze S Power Supply. 250W; 80+ Bronze; 12V@16A; 120mm fan; dual voltage 115 / 230V
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R 574.00
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Unique 500 Watt Power Supply unit - OEM, 1x 20 + 4 pin main connector, 1x P4 4 pin 12V connectors, 3x 4 pin molex Peripheral connectors, 3x SATA connectors, 1x floppy Drive connector
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R 579.00
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Antec Atom V550 550W Non-Modular Power Supply: 550W Output, CircuitShield(TM) protections (OPP / OVP / UVP / SCP), 120mm silent fan, Thermal Manager for optimal heat and noise management, Non-modular design, Input: 230Vac, 5A, 47-63Hz, Output: +3.3V / 18A, +5V / 16A
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R 582.00
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HuntKey CP400W 400W ATX Power Supply with 12cm fan, 4+4 pin CPU connector, (6+2) pin PCI-e connector, 3 SATA / 3 HDD / 1 FDD Hard Disk Interface
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R 582.00
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Aerocool VX Plus 600W ATX12V ver 2.3 Power Supply unit, 1x 24 pin Motherboard, 1x 4+4 pin 12V CPU 2x 6+2 pin VGA, 4x SATA, 3x PATA, 1x FDD
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R 586.00
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Antec Atom V550 Non-Modular Power Supply
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R 564.00
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Aerocool Lux Bronze 750W ATX Power Supply unit, ATX 24 pin, 1x 4+4 pin CPU, 5x SATA, 4x PATA, 2x PCI-e 6+2pin., 80Plus 230V EU Bronze Certified for up to 88%+ efficiency, Built-In apfc, Silent 12cm Black fan, ATX12V VER.2.4
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R 600.00
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CFi AT Power Supply 400W - for CFi duplicator or old PC, Not for newer PC's
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R 620.00
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Aerocool VX Plus 700W ATX12V ver 2.3 Power Supply unit, 1x 24 pin Motherboard, 1x 4+4 pin 12V CPU 2x 6+2 pin VGA, 6x SATA, 3x PATA, 1x FDD
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R 624.00
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MSI MAG A500N-H 500W ATX Non-Modular Power Supply, Hydraulic bearing, 1x ATX (24 pin), 2x EPS (4+4 pin), 120 mm fan size, 1x PCI-e (6+2 pin), 3x SATA (15 pin), 2x Molex (4 pin), 1x FDD (4 pin), Active PFC
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R 627.00
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Mecer 500W 80+ energy star 6.0 Universal ATX 2.2 (SABS) Power Supply, 5 SATA connectors, 1 x 4 + 4 pin EPS CPU connectors, 2 x 6 + 2 pin PCI-e PCI connectors, 1 x 20 + 4 pin ATX Motherboard connectors, 2 molex connectors, 1 x floppy floppy connectors, 80 Plus Certified
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R 663.00
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Aerocool AERO Bronze 550W PSU - ATX 24 PIN; 1x 4+4PIN CPU; 4x SATA; 2x PATA; 1x PCIe 6+2PIN
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R 687.00
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Antec Atom V650 650W Non-Modular Power Supply, No Power cord, 120mm silence fan, 1x MB 24(20+4) pin, 1x 8(4+4) pin EPS 12V, 2x 8(6+2) pin PCI-e, 5x SATA, 2x Molex, 1x FDD
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R 694.00
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Antec ATOM V650 Non-Modular ATX 12V 2.31 Power Supply, 120mm silence fan, 1x MB 24 (20+4) pin, 1x 8 (4+04) pin EPS 12V, 2x 8 (6+2) pin PCI-e, 5x SATA, 2x Molex, 1x FDD
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R 707.00
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Unique 550W ATX Power Supply, 120mm sleeve fan, 1x PCI-e (6+2), 1 x 20+4 pin, 6x SATA, 1x CPU8 (4+4) pin, 3x Peripheral, 1x FDD
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R 737.00
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1x Antec Atom V750 750W Non-Modular Power Supply, 1x 24 pin Main connector, 1x 8(4+4) pin EPS12V, 2x 8(6+2) pin PCI-e, 5x SATA, 2x Molex, FDD, 120mm Silent fan
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R 740.00
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Rack Mount Kit for Mecer Rackmountable UPS
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R 740.00
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Aerocool AERO Bronze 650W PSU - ATX 24 PIN; 1x 4+4PIN CPU; 5x SATA; 4x PATA; 2x PCIe 6+2PIN
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R 745.00
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FSP HV Pro 550W Plus non-mod ATX PSU, 85% efficiency, 1x ATX 24, 2x 4+4 pin, 2x PCI-e 6+2, 4x SATA, 2x molex (Peripheral), 1x floppy
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R 745.00
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Antec Atom V750 Non-Modular Power Supply
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R 751.00
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HuntKey 500W Eco 80 Plus Power Supply, Dual ball bearing fan, 20+4 pin mainboard connector, 1x (4+4-4+4) pin CPU connector, 1x (6+2-6+2) pin GPU connector, 3x SATA, 3x PATA, 500W rated Power
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R 787.00
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Gigabyte gp-p450B 450w 80plus Bronze, Eps12V- 24pin (4pin detachable), 1x EPS12V, 2x 8pin (2+6) PCI-E power, 6x SATA + 1x 4pin molex, flat cables design, 120mm HYB fan (HYdraulic Bearing) - with OCP / OVP / UVP / OPP / SCP / OTP protections - no power cord
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R 790.00
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Gigabyte P550B 550W 80+ Bronze Certified, MB 24 / 20-pin x 1, CPU 4+4-pin x 2, PCI-E 6+2-pin x 4, SATA x 8, Peripheral x 3
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R 790.00
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HuntKey 650W Eco 80 Plus Power Supply, Dual ball bearing fan, 20+4 Pin mainboard connector, 1x (4+4-4+4) pin CPU connector, 1x (6+2-6+2) pin GPU connector, 3x SATA, 3x PATA, 650W rated Power
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R 807.00
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Gigabyte P450B 450W 80+ Bronze Certified, MB 24 / 20-pin x 1, CPU 4+4-pin x 1, PCI-E 6+2-pin x 2, SATA x 6, Peripheral x 3
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R 812.00
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MSI MAG A550BN 550W 80+ Bronze rated Power Supply unit, 120mm low noise fan, Active PFC design, ATX PSU form factor, 1x 20+4 pin ATX, 1x 4+4 pin EPS, 2x 6+2 pin PCI-e, 5x SATA, 2x Peripheral molex, 1x FDD
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R 826.00
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Antec Neo power 430w ( 12v : 384w ) , with Modular cable management , High Efficiency (85%) , active PFC , 1 x 6pin PCI-E power connector , dedicated output circuits for 3.3V, 5V, and tripple 12V circut + voltage feedback detection + antec Low noise technology ; 1x 80mm low noise fans with advanced thermal control , with OCP , OVP , OPP , SCP , UVP
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R 852.00
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Mecer 700W 80+ Energy Star 6.0 Universal ATX 2.2 with 2x (4+4) Connector (SABS), Channel Well
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R 861.00
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Antec Atom B650 650W 80 Plus Bronze Non-Modular Power Supply: 80 PLUS® BRONZE Certified, CircuitShield(TM) protections (OPP / OVP / UVP / SCP), 120mm silent fan, Flat cables, Active Power Factor Correction (APFC), Input: 200-240Vac, 6.3A, 50Hz, Output: +3.3V / 15A
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R 865.00
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HuntKey 750W Eco 80 Plus Power Supply, Dual ball bearing fan, 20+4 pin mainboard connector, 1x (4+4-4+4) pin CPU connector, 1x (6+2-6+2) pin GPU connector, 3x SATA, 3x PATA, 750W rated Power
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R 865.00
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Aerocool AERO Bronze 750W PSU - ATX 24 PIN; 1x 4+4PIN CPU; 5x SATA; 4x PATA; 2x PCIe 6+2PIN
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R 870.00
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Antec Atom B650 Non-Modular Power Supply
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R 876.00
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Unbranded 750W Gaming PSU Power Supply
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R 876.00
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Huntkey GS600 500W Power Supply with 12cm Fan, Rated Power 500W, +12V Single-rail, >85% Energy Efficiency & 80 PLUS Certified, Reliable Power with Active PFC, Excellent Heat Dissipation & Soundless Performance
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R 876.00
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MSI MAG A550BN 550W 80+ Bronze rated Power Supply unit, 120mm low noise fan, Active PFC design, ATX PSU form factor, 1x 20+4 pin ATX, 1x 4+4 pin EPS, 2x 6+2 pin PCI-e, 5x SATA, 2x Peripheral molex, 1x FDD
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R 924.00
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MSI MAG A650BN 650W 80+ Bronze rated Power Supply unit, 120mm low noise fan, Active PFC design, ATX PSU form factor, 1x 20+4 pin ATX, 1x 4+4 pin EPS, 2x 6+2 pin PCI-e, 5x SATA, 2x Peripheral molex, 1x FDD
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R 925.00
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MSI MAG A650BN 650W 80+ Bronze rated Power Supply unit, 120mm low noise fan, Active PFC design, ATX PSU form factor, 1x 20+4 pin ATX, 1x 4+4 pin EPS, 2x 6+2 pin PCI-e, 5x SATA, 2x Peripheral molex, 1x FDD
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More information about Power supply unit / PC PSU

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Computer Power Supply Units (PSUs)

A computer power supply unit (PSU) converts mains AC into low-voltage regulated DC power for the internal components of a PC. At ComX Computers South Africa, you can find ATX, micro-ATX and mini-ITX power supplies designed to support gaming systems, office desktops and professional workstations.

Types of Computer Power Supplies

  • Standard ATX PSUs: The most common size, compatible with full tower and mid tower ATX cases.
  • Micro-ATX PSUs: Slightly smaller units suited for compact micro-ATX builds.
  • Mini-ITX PSUs: Ultra-compact supplies for mini-PCs, HTPCs and space-saving systems.
  • Modular PSUs: Cables can be attached only when needed for cleaner builds and improved airflow.
  • Semi-modular PSUs: A balance between affordability and cable management flexibility.
  • Non-modular PSUs: Fixed cables, offering reliable budget-friendly performance.

Key Features to Consider

  • Wattage: Choose from entry-level 400W units for office PCs to 1000W+ models for high-end gaming rigs.
  • Efficiency ratings: Look for 80 Plus Bronze, Silver, Gold or Platinum certification for energy savings and reliability.
  • Cooling: Large, quiet fans or 0dB semi-passive cooling ensure silent performance.
  • Connectors: Support for GPUs, SSDs, HDDs and modern motherboards with 24-pin, 8-pin and PCIe connectors.
  • Safety features: Built-in surge protection, over-voltage and thermal safeguards for component security.

Who Needs These PSUs?

Gamers need high-wattage, efficient power supplies to support graphics cards and cooling systems. Office and home users benefit from reliable mid-range PSUs for everyday workloads. Professionals building workstations should select modular or semi-modular units for tidy cable management and stable performance.  

Shop Power Supplies in South Africa

ComX Computers stocks a wide variety of ATX, micro-ATX and mini-ITX power supplies suitable for all types of PC builds. Whether you are upgrading an existing desktop or assembling a custom gaming rig, you’ll find high-quality PSUs that deliver reliable performance and excellent value.

Get the right computer power supply unit today from ComX Computers and power up your PC build with confidence.

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E&OE. All prices and specifications are subject to change without notice. All prices are a reference and are an invitation for potential buyers to make an offer to purchase, which we may reject without reason. At no point do we make offers to sell on any website and quotes are required before a purchase can be made.

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