19-Pin USB 3.0 Female to 9-Pin USB 2.0 Motherboard Header Adapter

19-pin USB 3.0 Female socket to 9-pin Male USB 2.0 motherboard header adapter.

The 19-pin USB 3.0 Female socket to 9-pin Male USB 2.0 motherboard header adapter is also known as a USB 3.0 to USB 2.0 internal header converter.​

Guaranteed reliability: Our 19-pin USB 3.0 Female socket to 9-pin Male USB 2.0 motherboard header adapter includes a 1-Year Techexpress New Zealand Guarantee!

Usage:  The 19-pin USB 3.0 Female socket to 9-pin Male USB 2.0 motherboard header adapter is used to connect a USB 2.0 front panel or device to a motherboard's USB 3.0 header, enabling compatibility when the motherboard lacks a 9-pin USB 2.0 header.

Features:

• 19-Pin USB 3.0 Female MainBoard Socket.
• 9-Pin USB 2.0 Male Cable Header.
• Compact and Durable Design.
• Plug-and-Play Installation.
• High-Quality Signal Transfer.
• Easy to Use.
• Reliable Connection.

9-pin to 19-pin Adapter Technical Specifications:

Sold as: Each.
Packaging: Bulk.
Product Marking: PH23B.
Form factor: Bare PCB Design.
Product Code: USB3TO2ADPT-NZ.
Data Transfer Rate: Up to 480 Mbps (USB 2.0 limits).
Interface: USB 3.0 female (19‑pin) → USB 2.0 male (9‑pin).
Product Type: Internal motherboard USB Pin Header adapter.
Applications: Front Panel Connection, Internal USB Integration, Data Transfer.

Connector A: 9-pin Male USB 2.0 Pin Header Plug.
Connector B: 19-pin Female USB 3.0 Motherboard Pin Header Receptacle/Socket.​​

⚠️ Limitations

• No USB 3.0 speeds—maxes out at USB 2.0 standard (480 Mbps)
• Works only on internal motherboard headers, not external ports
• Orientation-sensitive: wrong insertion may damage header or adapter
• Limited power: USB 2.0 provides only 500 mA – unsuitable for high-current devices
• Does not upgrade USB 2.0 to USB 3.0—only repurposes internal port

Package includes: 1x 19-pin USB 3.0 Female socket to 9-pin Male USB 2.0 motherboard header adapter.

*Does not include USB cables, USB devices, screws, or motherboard. The image is for illustrative purposes only. Due to variations in camera settings, lighting, manufacturing processes, monitors, and supply, colours may differ.

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💰 We offer bulk discounts to New Zealand-based businesses, schools and government agencies — contact us for pricing on larger orders!