InLine USB 3.0 Premium Adapter Cable 2x USB A male / mainboard header, 0.40m

The InLine USB 3.0 Premium Adapter Cable (33447I) is a 0.4 m cable with two USB A male connectors that converts to a 19-pin motherboard internal USB 3.0 header. It is designed to connect internal USB 3.0 devices to a PC mainboard and supports USB 3.2 Gen 1 (also marketed as USB 3.1 Gen 1) with up to 5 Gbit/s data transfer speed. The cable comes in a black finish suitable for use inside desktop systems.

Advantages

The adapter cable provides a direct internal connection from two external-style USB A male plugs to a 19-pin mainboard header, enabling the use of internal USB 3.0 devices without additional converters. With USB 3.2 Gen 1 support and a short 0.4 m length, it reduces signal loss and clutter inside the case while delivering up to 5 Gbit/s bandwidth. The black colour integrates discreetly into most system interiors.

Suitable for

• Connecting internal USB 3.0 front-panel ports or hubs to a motherboard USB 3.0 header
• Attaching internal USB 3.0 devices such as card readers or internal hubs
• System builders and technicians assembling or upgrading desktop PCs

Key specifications

• Manufacturer: InLine
• Model (MPN): 33447I
• EAN: 4043718184743
• Connector configuration: 2 x USB A male to 19-pin motherboard connector
• USB version: USB 3.2 Gen 1 (USB 3.1 Gen 1)
• Maximum data rate: 5 Gbit/s
• Cable length: 0.4 m
• Colour: Black

How to use

Route the 0.4 m cable inside the desktop case from the device or front panel to the motherboard. Insert the 19-pin connector into the corresponding internal USB 3.0 header on the mainboard, ensuring correct orientation to avoid damaging pins. Connect the two USB A male plugs to the internal devices or adapter points as required. Power off the system before connecting or disconnecting internal headers and verify proper seating before powering on.

Recommendations

Use this adapter for short internal connections to minimize cable length and maintain signal integrity; avoid tight bends and strain on the connectors. Confirm motherboard header pinout and orientation in the mainboard manual before installation.