Choosing pc power supplies & cables gets complicated when case format, cable routing, connector wording, and purchase condition point in different directions. The largest wattage number is not automatically the deciding factor. Start with the form factor named for your build, then use cable layout and connection details to narrow the field. In this group, the core choice is SFX versus ATX, modular versus non-modular cabling, and used, open-box, or new condition.
Quick take
All four entries use 80 Plus Gold wording, but the practical differences go beyond that shared label. Treat form factor as the first filter, then use cable layout, connector callouts, and condition to separate otherwise plausible choices. The listed prices cover a wide range, yet price alone cannot determine whether an SFX unit, an ATX unit, or a modular cable setup better fits a particular build plan.
Listed price comparison
| Power supply | Condition | Listed price | Price position |
|---|---|---|---|
| Enermax MaxRevo 1350W | Used | USD 64.89 | |
| EVGA SuperNOVA 450 GM | New | USD 70.00 | |
| Segotep 650W Non-Modular ATX | Open box | USD 52.99 | |
| Segotep 850W ATX 3.0 | New | USD 99.99 |
Decision matrix
- Cable approach: Enermax is labeled modular, EVGA fully modular, the open-box Segotep non-modular, and the Segotep 850W full modular.
- Connector wording: EVGA lists 24 Pin, 4+4 CPU, 6+2 Pin PCI Express, SATA, and 4 Pin Peripheral connections. The open-box Segotep lists a 20+4 Pin connection.
- Purchase condition: The Enermax is used, the EVGA and Segotep 850W are new, and the Segotep 650W is open box.
- Price position: The $47.00 spread runs from the open-box Segotep 650W to the Segotep 850W ATX 3.0.
Product notes
Enermax MaxRevo 1350W Modular PC Power Supply
The Enermax MaxRevo is the fit for a build plan centered on its listed 1350W designation and a modular cable layout. Its title also includes cables, which is a practical draw for someone who wants the cable set named alongside the power supply. The clear limitation is condition: this Enermax is used. That makes it a different purchase proposition from the new entries, regardless of the wattage figure. The MaxRevo name and EMR1350EWT model wording help distinguish it within the group, but the deciding reasons are the modular arrangement, included-cable title, and used status.
EVGA SuperNOVA 450 GM 450W 80 Plus Gold SFX Fully Modular Power Supply
EVGA SuperNOVA 450 GM is directed at shoppers whose build plan specifically calls for an SFX form factor. ECO Mode with DBB Fan is another named feature, and the unit is new. The limitation is equally direct: SFX does not answer a search limited to the listed ATX formats. Its title carries a 450W designation, but that number is best treated as a specification to match to the rest of a build rather than a standalone verdict. This is a format-led choice for an SFX requirement, with a particularly detailed connector list in the comparison.
OPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSU
Choose the open-box Segotep GN-650 when the named ATX form factor and stated 20+4 Pin connector match the components already planned. It also lists a 120mm fan and 80 Plus Gold efficiency. The tradeoff is stated in the title: it is non-modular, rather than carrying the modular layout named on the other three entries. Open-box condition is a separate planning consideration for shoppers sorting by purchase state. Its strongest case is a direct match to the ATX and connector wording, rather than a broad claim about every type of build.
Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU
The Segotep ATX 3.0 Gaming Power Supply speaks most clearly to a build plan that specifically calls for ATX 3.0 and PCIe 5.0 wording. The description also names flat black cables and a silent fan mode, two details that may matter to shoppers prioritizing those particular callouts. Its limitation is price position: USD 99.99 sits $47.00 above the lowest listed amount in this comparison. The unit is new. Choose the Segotep 850W for its ATX 3.0 and PCIe 5.0 labels and its named cable and fan details, not because a numerical label alone settles system suitability.
Final recommendation by use case
- For an SFX-specific build: Choose the EVGA SuperNOVA 450 GM for its explicitly named SFX form factor.
- For the lowest listed price: Choose the open-box Segotep 650W at USD 52.99.
- For a listed 1350W designation with cables in the title: Choose the Enermax MaxRevo.
- For ATX 3.0 and PCIe 5.0 labels: Choose the Segotep 850W ATX 3.0 Gaming Power Supply.
