Choosing among pc power supplies & cables starts with one important split: do you need to supply power to a computer, or do you need to route and organize cables already in place? Three choices here are SFX power supplies, while the fourth is a cable-management kit. Once that is clear, condition, stated wattage, connector listings, and modular design make the power-supply decision more specific.
Quick take
The power-supply choices are aimed at an SFX-form-factor build, while the 192-piece kit serves cable organization across the devices named in its title. The practical decision is not simply which item costs less: it is whether your project calls for a power supply at all, then which stated configuration and condition fits that need.
Listed price comparison
The lowest-to-highest listed-price spread is USD 59.01. The two SilverStone units share the same listed price, the EVGA is USD 5 higher, and the cable-management kit sits in a separate price tier.
| Item | Listed price | Position in this group |
|---|---|---|
| SilverStone SST-ST30SF 300W | USD 65.00 | |
| Silver Stone SST-ST45SF 450W | USD 65.00 | |
| EVGA SuperNOVA 450 GM 450W | USD 70.00 | |
| 192 PIECE CABLE MANAGEMENT KIT | USD 10.99 |
Decision matrix
- Choose a listed 300W SFX unit with a specific connector lineup: The SilverStone SST-ST30SF names 20 Pin, 20+4 Pin, 24 Pin, and 8 Pin 12V connections.
- Choose a listed 450W SFX Bronze unit where Used condition is acceptable: The Silver Stone SST-ST45SF matches that description.
- Choose a new, fully modular SFX power supply: The EVGA SuperNOVA 450 GM is marked New and lists modular design.
- Choose cable organization rather than PC power: The 192 PIECE CABLE MANAGEMENT KIT is the fit for the PC, TV, desk, and car tasks named in its title.
Product notes
SilverStone SST-ST30SF SFX Form Factor 300W 80Plus Bronze Power Supply

The SilverStone SST-ST30SF is a focused choice when your build calls for the title's 300W SFX format and the stated 20 Pin, 20+4 Pin, 24 Pin, and 8 Pin 12V connections. Its one-fan cooling setup is also named, giving shoppers a concrete configuration to match against their planned build. The key limitation is condition: it is marked Open box rather than New. That makes the SST-ST30SF most relevant when its connector list and listed form factor matter more to you than selecting a sealed unit.
Silver Stone SST-ST45SF 450W SFX 80 Plus Bronze Power Supply

The Silver Stone SST-ST45SF suits a shopper looking specifically for the 450W SFX 80 Plus Bronze wording in its title. It is one of two power supplies at the same listed price, so its stated 450W specification is the central reason to put it on a shortlist instead of treating price as the deciding factor. Its limitation is equally clear: the unit is marked Used, and prior-use scratches are described. Choose it when that condition fits your purchase, rather than when New condition is essential.
EVGA SuperNOVA 450 GM 450W 80 Plus Gold SFX Fully Modular Power Supply. New

The EVGA SuperNOVA 450 GM stands out for shoppers who want a New SFX unit with the listed fully modular design. Its named connections include 24 Pin, 4+4 CPU, 6+2 Pin PCI Express, SATA, and 4 Pin Peripheral, which gives it a detailed configuration for a build planned around those connections. ECO Mode with DBB Fan is also part of the description. The trade-off is its highest listed-price position in this group. Choose the EVGA when its New status and modular configuration carry more weight than staying with the two USD 65 choices.
192 PIECE CABLE MANAGEMENT KIT FOR PC/TV/DESK/CAR

The 192 PIECE CABLE MANAGEMENT KIT is the direct choice when the job is organizing cords around a PC, TV, desk, or car rather than selecting a computer power supply. The 192-piece count is its concrete appeal for someone gathering cable-management items for those named settings, and it has the lowest listed price in the comparison. Its limitation is purpose: this is a cable-management kit, serving a different task from the three SFX power supplies. Put it first on the list for cable routing and tidying, not for powering PC components.
Final recommendation by use case
Choose the EVGA SuperNOVA 450 GM for a new power-supply choice at the USD 70 point of the group. At USD 65, the SilverStone SST-ST30SF and Silver Stone SST-ST45SF are the two listed alternatives; use their stated connector, wattage, and condition differences to separate them. For organization rather than power, choose the 192 PIECE CABLE MANAGEMENT KIT at USD 10.99.