PC cables come in two different formats. The first option is extension cables, and the second option is modular cables. Extension cables, by definition, extend the length of your existing, stock power supply cables. One end plugs into the end of the stock cable, and the other plugs into the component. These cables grant more reach in your PC case, provide some style on the component end, and come in at a lower cost.
Modular cables, in comparison, plug directly into the power supply and replace the stock cables entirely. These cables are generally more expensive as a result of their longer lengths, custom wiring configurations, and time required to craft. Modular cables also allow for cleaner routing in the PC case from creating, or ordering, the cables to match your specific build’s components.
How to decide which option is best
When building a custom PC, your power supply will include a set of cables to power your components. These cables will either be fully disconnected from the power supply if it is modular, or permanently attached if the unit is a non-modular power supply. However, if someone wants longer, shorter, or custom PC cables, they need to make a decision based on their type of power supply.
Extension cables
If you are looking to add some style to the visible part of your PC build, extension cables are a low-cost option perfect for the scenario. They are typically shorter in length, as their primary purpose is to be seen in the visible portion of your PC case, without cluttering the back with extra wires. Extensions contain a female connector on one end to plug into the component, and a male connector on the power supply end to plug into the stock cable.
Since extension cables simply plug into the stock power supply cables to extend their length, they are universally compatible with any brand. This allows any existing extension cables you own to be transferred over to a new build, or parts, in the future. They are also your only option if you have a non-modular power supply, as the stock PSU cables not be removed.
Modular cables
If you are looking for more control over the cable routing inside your case, modular replacement cables will provide the best result. They can be measured to the exact lengths necessary for your PC parts which keeps your case tidy. Modular cables will also replace the stock cables entirely to provide a more color-coordinated, and efficient, build process.
Furthermore, modular cables feature a much wider range of lengths as they can be created specifically for small SFF cases, full tower cases, or anything in between. They can not, however, be plugged into other, incompatible power supplies due to their brand-specific wiring pinouts. Even if the connectors are the same, you should always double check the wiring pinout of your power supply to ensure your cables are compatible.
Wrapping up
If attainable, modular cables will provide a better experience building, theming, and routing cables in your build. They will, however, come in at a higher cost when crafting your own, or purchasing, due to the additional materials and time to complete. Extension cables, in comparison, offer a universally compatible, cost-effective, and future proof solution to add a splash of color inside your custom PC build.
