Choosing pc power supplies & cables starts with one essential question: are you powering a build, or changing the way its existing power cables are routed and displayed? A power supply and a cable extension kit solve very different problems. Once that split is clear, form factor, cable layout, condition, and the output figure named for each power supply make the decision more manageable.
Quick take
There are three complete power supplies here and one sleeved extension kit. The Enermax and Segotep entries are ATX-oriented power supplies, while the EVGA is an SFX unit. Modular and non-modular cable layouts create a second divide, and the condition ranges from new to used or open box. The extension kit belongs in a build that already has a power supply and needs a more coordinated cable run; it is not a direct connection to the PSU itself.
Listed-price comparison
| Choice | Listed price | Price position |
|---|---|---|
| Enermax MaxRevo 1350W | USD 64.89 | |
| EVGA SuperNOVA 450 GM | USD 70.00 | |
| Segotep 650W | USD 52.99 | |
| PSU Cable Extension Kit | USD 39.67 |
Decision matrix
- A build described as multi-GPU or extreme-performance: The Enermax MaxRevo is expressly positioned for those uses and has a modular cable layout.
- An SFX form-factor requirement: The EVGA SuperNOVA 450 GM is the dedicated SFX choice and is marked new.
- A 650W non-modular ATX specification: The Segotep unit matches that stated combination, with 80 Plus Gold wording in its title.
- A cable-routing update for an existing PSU: The sleeved kit connects into factory PSU cables rather than directly into the power supply.
Product notes
Enermax MaxRevo 1350W
Choose the Enermax MaxRevo when the build description specifically calls for a multi-GPU rig or an extreme-performance system, both of which are named uses. The unit is an ATX / EPS12V power supply with 80 PLUS Gold certification and modular cable connectivity, so the cable set can be selected around the build rather than connected all at once. Its steel / metal enclosure and 50-60 Hz frequency range are also stated. The main trade-off is condition: the Enermax is used. That makes it a distinct condition choice from the new EVGA, even though both use modular cable designs.
EVGA SuperNOVA 450 GM
The EVGA SuperNOVA 450 GM fits a shopper deliberately selecting the SFX form factor. It is new and fully modular, with a named connector mix that includes 24 Pin, 4+4 CPU, 6+2 Pin PCI Express, SATA, and 4 Pin Peripheral connections. That combination makes it a focused pick when those connector labels and a modular SFX layout are part of the build plan. Its limitation is simply the 450W designation: it is not the match for a requirement specifically set around the 650W or 1350W figures named by the other power supplies. ECO Mode with a DBB fan is also named.
OPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSU
Pick the Segotep 650W power supply when a 650W, 80 Plus Gold, non-modular ATX unit is the stated target. The black power supply has a 120mm fan, and its title identifies it as a gaming PC case PSU, giving it a straightforward role beside the SFX EVGA and the higher-output Enermax. Cable planning is the concrete compromise: the Segotep is non-modular. Its condition is open box rather than new, which is another clear distinction within this group. This is the choice for shoppers who want its particular ATX and non-modular configuration, not an extension-only cable set.
PSU Cable Extension Kit Sleeved Cable Custom Power Supply Sleeved Extension 16 A
The PSU Cable Extension Kit is for changing the visible cable run while keeping the existing factory PSU cables in place. Its black-and-purple sleeving, included cable combs, and 300mm extension-cable length suit a coordinated cable-management project. Rounded edges and black connectors on both ends are also part of the description. The limitation defines its role: the kit is a cable extension and cannot connect directly to the power supply. Choose it for the male-to-female 24 Pin ATX extension format, rather than as a substitute for an ATX or SFX power supply.
Final recommendation by use case
- Choose the Enermax MaxRevo when six independent +12V rails are part of the required configuration.
- Choose the EVGA SuperNOVA 450 GM when an SFX unit with ECO Mode and a DBB fan is the stated preference.
- Choose the Segotep 650W when a 20+4 Pin connector is part of the desired ATX power-supply specification.
- Choose the PSU Cable Extension Kit when a male-to-female 24 Pin ATX extension is needed for an existing PC power setup.
