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Main image of USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

Alt view image 2 of 7 - USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

Alt view image 3 of 7 - USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

Alt view image 4 of 7 - USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

Alt view image 5 of 7 - USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

Alt view image 6 of 7 - USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

Alt view image 7 of 7 - USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

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USB 3.0 9Pin 1 to 2 USB2.0 9Pin Port Multiplier Adapter, Motherboard Internal Female Hub Extension Connector, PC Mainboard USB Header Splitter Cable

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Convert single USB3.0 9Pin motherboard header into dual USB2.0 9Pin ports for internal expansion
Internal motherboard header splitter, ideal for adding front panel USB ports inside PC case
Compact mini design, saves chassis space and supports neat internal wiring arrangement
Stable signal transmission, perfectly match standard USB 9Pin internal header definition
Plug and play, no driver installation required for desktop computer hardware modification

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This internal motherboard USB header adapter turns one USB 3.0 9Pin female header into two USB 2.0 9Pin female ports. It is a practical expansion accessory for DIY PC builders to extend front USB interfaces.

It adopts standard internal USB 9Pin pin assignment and ensures reliable signal transmission. The small form factor will not occupy excessive space inside the computer chassis and facilitates tidy cable management.

Great for upgrading desktop cases, connecting front USB panels and expanding internal USB peripherals. Suitable for various ATX, MATX, ITX motherboards with USB 9Pin headers.

Warm Reminder: This splitter outputs USB 2.0 speed only. It cannot split USB3.0 bandwidth to two USB3.0 ports. Please check your motherboard header specification before ordering.

Additional Information
First Listed on Newegg	August 12, 2026

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Item#: 9SIB3ENM3G5697