Choosing pc power supplies & cables starts with one useful split: do you need to deliver power to a PC build, or do you need to organize cables already around your setup? The three power supplies here are ATX units with different modularity, capacity wording, and condition, while the cable management kit addresses routing for PC, TV, desk, or car cables. Keeping those jobs separate makes the choice much clearer.
Quick take
Pick the power supply first when you are building or replacing the core PC power component. The OPEN BOX 650W Power Supply is the non-modular, open-box route. Segotep's 850W model and MSI's MPG A1000G are both full-modular choices with ATX 3.0 and PCIe 5.0 language in their titles. The 192 PIECE CABLE MANAGEMENT KIT is a separate organizational purchase, not a substitute for a PSU.
Listed-price comparison
| Item | Listed price | Relative price bar | Purchase type |
|---|---|---|---|
| Segotep open-box 650W PSU | USD 52.99 | Power supply | |
| Segotep 850W ATX 3.0 PSU | USD 99.99 | Power supply | |
| MSI MPG A1000G 1000W PSU | USD 130.00 | Power supply | |
| 192-piece cable management kit | USD 10.99 | Cable organization |
The listed span is $119.01 from the cable management kit to the MSI unit. That wide range reflects two different shopping jobs as well as three distinct PSU configurations, so compare the supplies with each other before treating the kit as a lower-cost alternative.
Decision matrix
- Need an open-box, non-modular ATX unit: choose the OPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSU.
- Want ATX 3.0 and PCIe 5.0 wording alongside a full-modular design: choose the Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU.
- Shopping around the 1000W designation and a stated connector list: choose the MPG A1000G PCIE 5.0 & ATX 3.0 Gaming Power Supply.
- Trying to tidy a cable-heavy workstation or entertainment area: choose the 192 PIECE CABLE MANAGEMENT KIT FOR PC/TV/DESK/CAR.
Product notes
OPEN BOX 650W Power Supply 80 Plus Gold Non-Modular ATX Gaming PC Case PSU

This Segotep unit fits a build brief that specifically calls for a 650W, 80 Plus Gold, non-modular ATX power supply. The title gives those core terms directly, while the attributes name a 120mm fan and a 20+4-pin connector. Its listed USD 52.99 price places it well below the two new modular PSUs in this comparison. The limitation is equally direct: it is marked open box, rather than new, and its non-modular layout differs from the full-modular designs offered by the other two power supplies. Choose it when those stated specifications and open-box condition are comfortable matches for your plan.
Segotep 850W ATX 3.0 Gaming Power Supply PCIe 5.0 Full Modular 80 Plus Gold PSU

The Segotep 850W model is the focused choice for someone looking for ATX 3.0, PCIe 5.0, 80 Plus Gold certification, and full modularity in one title. It is listed as new, and its description calls out flat black cables, a native 12VHPWR cable, and a 120mm fan. At USD 99.99, it sits between the open-box 650W supply and the MSI 1000W model. Its concrete trade-off is the title's 850W designation rather than the 1000W designation on the MSI. Select this one when the ATX 3.0 and PCIe 5.0 terms are central to the purchase.
MPG A1000G PCIE 5.0 & ATX 3.0 Gaming Power Supply - Full Modular - 80 Plus Gold

MSI's MPG A1000G is the choice centered on its 1000W title designation, combined with PCIe 5.0, ATX 3.0, full modularity, and 80 Plus Gold certification. Its connector list specifically includes 4+4 CPU, 6+2-pin PCI Express, 24-pin, SATA I, and 4-pin peripheral connections, giving shoppers clear named connection types to consider. The stated limitation is price: at USD 130.00, it is the highest-listed item here. That does not make it the right fit for every build; it simply makes the most sense when the 1000W wording and its specified connection mix are the deciding factors.
192 PIECE CABLE MANAGEMENT KIT FOR PC/TV/DESK/CAR

Choose the 192 PIECE CABLE MANAGEMENT KIT FOR PC/TV/DESK/CAR when the task is physical cable organization across a PC, TV, desk, or car setup. Its title specifies 192 pieces, making it the only item aimed at managing cable runs rather than powering a computer. At USD 10.99, it is also the lowest-listed purchase in the group. The important limitation is its role: it is a cable management kit, not an ATX power supply, so it cannot replace any of the three PSU choices. It makes sense as a companion purchase after the power-supply decision is already settled.
Final recommendation by use case
For an open-box non-modular PSU brief, choose the Segotep 650W model. For a new full-modular build focused on ATX 3.0 and PCIe 5.0 terminology, choose Segotep's 850W unit. Choose MSI's MPG A1000G when the 1000W designation and its named connectors lead the decision. If your PC is already powered and the real issue is cable routing around the room or desk, the 192-piece kit is the relevant purchase.