PCIe 5.0 x16 Riser Cable Cooler Master MCA-U000C-KPCI50-300, 300mm, black

Cooler Master PCIe 5.0 x16 riser cable (300 mm, black) is a flexible extension cable that allows relocation or extension of a PCIe x16 slot while preserving PCIe 5.0 signal integrity. Designed for systems where the graphics card or expansion card must be positioned away from the motherboard slot, it supports modern high-bandwidth devices and offers a neat routing option inside compact or unconventional chassis layouts.

Advantages

The riser cable provides a stable connection for PCIe x16 devices at PCIe 5.0 speed, enabling flexible component placement without compromising data throughput. Its 300 mm length balances reach and cable management, while the black outer finish integrates discreetly into most builds. The cable is engineered to reduce signal degradation and is suitable for systems where maintaining high-frequency signal integrity is essential.

Suitable for

• Custom PC builds that require alternate GPU positioning or vertical mounting
• Small-form-factor (SFF) cases where direct motherboard-to-card connection is impractical
• Test benches and development rigs needing frequent card changes or variable placement
• Systems that use high-bandwidth PCIe 5.0 x16 graphics cards or expansion cards

When it may not be suitable

This riser cable is intended for PCIe x16 connections; it may not be suitable for systems that require shorter or longer runs than 300 mm or for motherboards and cards that do not support PCIe 5.0 if older-generation compatibility is a deciding factor. Users who need an integrated bracket, mechanical reinforcement for extreme vertical mounts, or specialized screened enclosure may require additional accessories.

Key specifications

• Interface: PCIe x16, compatible with PCIe 5.0 signaling
• Cable length: 300 mm
• Color: black
• Application: extension/relocation of PCIe x16 devices inside a chassis

How to use

Install the riser cable by seating the cable’s PCIe x16 connector firmly into the motherboard slot and then attaching the card to the mating connector at the other end, ensuring both ends are fully inserted. Route the cable to avoid sharp bends and maintain gentle curves to preserve signal integrity. Use the case mounting points or additional brackets to secure the card and reduce mechanical stress on the connectors. Verify that the system recognizes the device and that drivers are updated for the connected hardware.

What to consider before purchase

• Confirm motherboard and card compatibility with PCIe x16 physical dimensions and PCIe 5.0 signaling if required
• Measure internal chassis space to ensure 300 mm cable length and routing options fit your layout
• Consider whether additional mounting brackets or retention hardware are needed to support the card
• Account for airflow and cooling requirements when relocating a GPU or high-performance card

Usage recommendations

Maintain gentle cable bends, avoid tight kinks, and secure both connectors to minimize mechanical stress. Test the system after installation and monitor device stability under load to confirm reliable signal performance.