Internal power cable DELOCK 84543 — 4-pin PWM to dual 4-pin PWM, 0.5 m

DELOCK 84543 internal power cable is a 0.5 m splitter cable that converts one 4-pin PWM connector into two 4-pin PWM connectors. It is intended for internal use inside PC chassis and enables two PWM fans or devices to share a single PWM header for synchronized speed control and power distribution. The cable is supplied as a single piece and designed to preserve the PWM control signal while providing power to both connected devices.

Advantages

The cable enables centralized fan control by duplicating the PWM signal and power line to two outputs without requiring additional motherboard headers. Its 22 AWG conductors and PVC jacket offer a balance between flexibility and durability for typical PC installations. With a rated maximum of 1 A at 12 V per overall cable and standardized 4-pin PWM connectors, the splitter maintains compatibility with common PWM fans and motherboard fan headers.

Suitable for

• Connecting two PWM fans to a single motherboard PWM header
• Linking additional case or CPU fans when header availability is limited
• Synchronizing fan speeds for coordinated cooling in desktops and small servers

Key specifications

• Connector configuration: 1 × 4-pin PWM (female) to 2 × 4-pin PWM (male)
• Cable length: 0.5 m
• Wire gauge: 22 AWG
• Maximum current: 1 A
• Maximum voltage: 12 V
• Pitch: 2.54 mm
• Jacket material: PVC
• Color: black

How to use

Insert the single 4-pin PWM female connector into the motherboard or controller PWM header, ensuring correct orientation so that the PWM and power pins align. Connect each of the two 4-pin PWM male connectors to the fans or PWM devices you wish to control. After connections are made, verify in the system BIOS or fan-control software that the motherboard recognizes the connected fans and that PWM control is active. Route the cable inside the chassis to avoid obstructing airflow or contact with moving parts.

Recommendations

Do not exceed the rated current and voltage. If combined fan current exceeds the cable rating, use a dedicated fan hub with independent power. Ensure connectors are firmly seated and avoid sharp bends near connector ends. For optimal cooling management, monitor fan speeds after installation and adjust BIOS or software settings as needed.