Summary of Reddit Comments on "be quiet Straight Power 11 cables":

Connecting Cables for GPU:

• The be quiet Straight Power 11 PSU comes with cables for GPU power.
• It is recommended to use both cables on the adapter to ensure proper power supply.
• Some GPUs may require multiple 8-pin PCIe power cables, so ensure you have the necessary cables.
• If needed, purchase additional cables specific to your PSU or a 12vhpwr to 12vhpwr cable.
• It's important to connect all 8-pin PCIe plugs of the Nvidia adapter to the power supply.
• Best practice on a multi-rail power supply is to connect the GPU to two rails with two separate cables.

Alternate Solutions:

• Some recommend getting an additional cable that ends in a 6+2 pin connector for the be quiet Straight Power 11 PSU.
• Using the adapter provided might be necessary for the RTX 4090 due to power requirements.
• Be cautious with third-party adapters, as they might void the warranty for the RTX 4090.

Avoiding Issues:

• Contacting be quiet support can help ensure compatibility and prevent possible risks.
• Be cautious when switching out a PSU, as cable pinouts on the PSU side are not universal and can vary even between revisions of the same PSU.

Upgrades:

• Upgrading the PSU is unnecessary if the current one works fine.
• A well-made power supply such as the be quiet Straight Power 11 can last up to 10 years.

Safety Concerns:

• If there are any concerns about the PSU or its cables, reaching out to the manufacturer's support is recommended.
• It is crucial to avoid using incompatible cables, as this could potentially damage the PSU and other components.

These comments provide a comprehensive overview of connecting cables for the be quiet Straight Power 11 PSU, addressing compatibility, safety, and the importance of proper power supply for GPUs like the RTX 4090.