TechShelf Guide

PC Power Supplies & Cables: Choose ATX 3.0, Modular, or Compact SFX for Your Build

Choose among four pc power supplies & cables options by starting with form factor, named cable and connector details, and the $65 to $130 listed-price range-not by treating every wattage or generation label as interchangeable.

Last updated Aug 24, 2026

Choosing pc power supplies & cables for a build is not a matter of picking the biggest number in a title. The immediate decision is whether physical format, cable routing, named connector details, or newer-standard wording matters most to your plan. These four options cover a compact-format unit, several modular choices, and models with ATX 3.0 or PCIe 5.0 language. Start with the requirements that are explicitly named for your build, then use the listed prices to narrow the field.

Quick take

The first filter is physical format, followed by the standard and cable language found in each name or description. No single label answers every build question. Read connector names literally, treat output figures as stated values, and focus on the model whose stated form factor, cable arrangement, and component labels align with your intended setup. The price view below shows the span between the four starting points.

Listed price comparison

ModelListed pricePrice position
ATX 1000W Full Modular Power Supply with ARGB FanUSD 86.10
MSI MPG A1000G PCIE 5.0 & ATX 3.0USD 130.00
Segotep 850W ATX 3.0 PCIe 5.0 Full Modular PSUUSD 99.99
SilverStone SST-ST30SF SFX 300WUSD 65.00

The full range runs from USD 65.00 to USD 130.00. The largest listed-price gap is between the SilverStone SST-ST30SF and MSI MPG A1000G, so their different format and specification language deserve attention before price alone decides the purchase.

Decision matrix

  • Need an SFX form factor named outright: the SilverStone SST-ST30SF is the direct match.
  • Want ATX 3.0 and PCIe 5.0 wording in the product name: focus on the MSI MPG A1000G or Segotep 850W model.
  • Need a native 12VHPWR cable specifically named: select the Segotep 850W ATX 3.0 Gaming Power Supply.
  • Want an ARGB fan called out in the title: the ATX 1000W Full Modular Power Supply is the relevant choice.
  • Need 6+2 Pin PCI Express and SATA I among the listed connectors: the MSI MPG A1000G includes both.

Product notes

ATX 1000W Full Modular Power Supply, 80+ Bronze Dual CPU PC PUS with ARGB Fan

ATX 1000W Full Modular Power Supply, 80+ Bronze Dual CPU PC PUS with ARGB Fan

This model makes sense when a full modular layout and the ARGB fan named in its title are central to the build. Its attributes list 20+4 Pin and 4+4 CPU connectors, one fan, and a black finish, providing a clearly named connector pairing without adding a separate cable package. It is also marked new. The main limitation is its listed ATX form factor, which narrows its role for shoppers whose case requirement calls for a different physical format. Choose it for its stated modular arrangement and the specific CPU and main-power connector combination.

MPG A1000G PCIE 5.0 & ATX 3.0 Gaming Power Supply - Full Modular - 80 Plus Gold

MPG A1000G PCIE 5.0 & ATX 3.0 Gaming Power Supply - Full Modular - 80 Plus Gold

MSI's MPG A1000G suits a build seeking the 1000W rating stated in its description alongside 100% Japanese 105°C capacitors. The full modular wording is prominent, and the connector list is broad: 4+4 CPU, 4 Pin Peripheral, 6+2 Pin PCI Express, 24 Pin, and SATA I are all named. One fan is also listed. The restraint is straightforward: at USD 130.00, it occupies the highest listed price in this comparison. It is best reserved for shoppers who specifically want its stated output and component details rather than simply the lowest entry point.

Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU

Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU

The Segotep model is a strong match for shoppers drawn to its 80 Plus Gold certification, listed efficiency of up to 90%, and flat black cables described as supporting cable management. A 120mm fan is listed, and the unit is marked new with a black finish. Its description also names comprehensive protection and a stable +12V output. The tradeoff is price: USD 99.99 is USD 13.89 above the USD 86.10 entry. Choose it when the stated Gold certification and cable-management language matter more than reaching the lower listed price.

SilverStone SST-ST30SF SFX Form Factor 300W 80Plus Bronze Power Supply

SilverStone SST-ST30SF SFX Form Factor 300W 80Plus Bronze Power Supply

The SilverStone SST-ST30SF is the direct choice when your build calls for the SFX form factor named in its title. Its 300W maximum power is consistent across the description and attributes, while the connector list includes 20 Pin, 20+4 Pin, 24 Pin, and 8 Pin 12V. One fan and a black finish are also specified. The limitation is condition: this unit is marked open box rather than new. Pick it for a build centered on the stated compact form factor and its named connector set, with the open-box condition included in that decision.

Final recommendation by use case

Choose the ATX 1000W Full Modular Power Supply when its listed 20+4 Pin and 4+4 CPU connector pairing fits your component plan. The MSI MPG A1000G is the focused choice for shoppers prioritizing its stated 100% Japanese 105°C capacitors. Select the Segotep model when a native 12VHPWR cable is a requirement. Pick the SilverStone SST-ST30SF when a 300W maximum-power listing fits the build and its open-box condition works for your purchase.

Products in this article
ATX 1000W Full Modular Power Supply, 80+ Bronze Dual CPU PC PUSUSD 86.10View on eBayMPG A1000G PCIE 5.0 & ATX 3.0 Gaming Power SupplyUSD 130.00View on eBaySegotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSUUSD 99.99View on eBaySilverStone SST-ST30SF SFX Form Factor 300W 80Plus Bronze Power SupplyUSD 65.00View on eBay
ATX 1000W Full Modular Power Supply, 80+ Bronze Dual CPU PC PUSUSD 86.10View on eBayMPG A1000G PCIE 5.0 & ATX 3.0 Gaming Power SupplyUSD 130.00View on eBaySegotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSUUSD 99.99View on eBaySilverStone SST-ST30SF SFX Form Factor 300W 80Plus Bronze Power SupplyUSD 65.00View on eBay

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