CTT AK-CA-07 power cable 6-pin PCIe to 8-pin PCIe, 20 cm

CTT AK-CA-07 power cable 6-pin PCIe to 8-pin PCIe, 20 cm is an adapter cable that converts a single 6-pin PCI Express power connector into an 8-pin PCIe connector. At 20 cm length, it provides a short, direct connection between a power supply unit (PSU) and a graphics card or other PCIe device that requires an 8-pin power input when the PSU lacks a native 8-pin output. The cable is intended for temporary or situational use to restore compatibility during upgrades, testing, or when additional dedicated connectors are not available.

Advantages

The adapter enables compatibility between a PSU with only 6-pin PCIe outputs and devices requiring an 8-pin PCIe power connection without needing to replace the power supply. Its compact 20 cm length reduces cable clutter inside the case and keeps routing straightforward. The simple cable design allows quick installation and removal for troubleshooting, temporary GPU use, or swapping components during upgrades. Manufactured by CTT, the cable follows standard connector pinouts for straightforward mating with common PCIe power sockets.

Suitable for

• Upgrading or testing a graphics card that requires an 8-pin PCIe power input when the PSU provides only a 6-pin connector
• Temporary setups, bench testing, or troubleshooting where adding a new PSU is not immediately possible
• Systems with limited cable length needs where a 20 cm adapter offers tidy routing inside compact or standard PC cases

When it may not be suitable

This adapter is intended as a compatibility and temporary solution and does not increase the power delivery capability of the original 6-pin connector. If a graphics card or PCIe device requires the additional power that a true 8-pin PSU output provides, or if sustained high current is expected, installing a PSU with native 8-pin connectors is recommended. For permanent high-load installations, relying on adapters can risk exceeding the current rating of the source connector.

Key specifications

• Connector type: 6-pin PCIe (male) to 8-pin PCIe (female)
• Cable length: 20 cm
• Use case: power adapter for PCI Express devices requiring 8-pin input
• Intended placement: internal PC installation between PSU and PCIe device

How to use

Power off the computer and disconnect it from mains before installing the adapter. Plug the 6-pin end of the CTT AK-CA-07 into the compatible 6-pin PCIe output from the PSU, then connect the 8-pin end to the graphics card or PCIe device requiring the 8-pin power input. Ensure connectors are fully seated and that cables are routed to avoid contact with fans or sharp edges. After installation, verify stable seating and power on the system to confirm device operation.

What to consider before purchase

• Verify the power requirements of the target graphics card or PCIe device and whether a 6-pin source can safely supply the required current
• Consider whether the adapter is for temporary use or if a PSU upgrade with native 8-pin outputs is more appropriate for long-term, high-load use
• Check case space and cable routing to ensure the 20 cm length is sufficient for installation without strain

Usage recommendations

Use this adapter for temporary compatibility and testing. For continuous high-power operation, install a power supply with native 8-pin PCIe outputs to meet manufacturer power and safety requirements.