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Main image of USB 3.0 1920Pin Motherboard Header to Dual USBA Female Adapter, Internal FrontPanel Header Converter for PC Case, 19Pin to 2×USBA Female Chassis Front Port Expansion Adapter PH21

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Alt view image 4 of 4 - USB 3.0 1920Pin Motherboard Header to Dual USBA Female Adapter, Internal FrontPanel Header Converter for PC Case, 19Pin to 2×USBA Female Chassis Front Port Expansion Adapter PH21

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USB 3.0 1920Pin Motherboard Header to Dual USBA Female Adapter, Internal FrontPanel Header Converter for PC Case, 19Pin to 2×USBA Female Chassis Front Port Expansion Adapter PH21

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Converts motherboard USB3.0 19/20pin internal header into two USBA female ports for case frontpanel
Supports USB3.0 highspeed 5Gbps data transfer, backward compatible with USB2.0 peripherals
Compact internal PCBstyle adapter, fits limited space inside desktop computer chassis
Plugandplay hardware connection, no driver needed for Windows, macOS and Linux systems
Practical solution for frontpanel port expansion, ideal for DIY PC assembly and hardware modification

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This internal PH21 adapter converts the standard USB 3.0 1920pin frontpanel header on your motherboard into dual USBA female ports. It offers a simple way to add extra USBA ports for your PC case front panel when your original case frontpanel cable is damaged or you need additional USBA interfaces.

It delivers full USB 3.0 5Gbps bandwidth for fast file transfer and is backward compatible with USB 2.0 devices such as flash drives, keyboards, mice and external storage. Compact PCB structure occupies minimal space inside the chassis and will not block surrounding motherboard components.

No driver installation or extra power supply required, pure plugandplay hardware operation. Please confirm your motherboard is equipped with complete USB3.0 1920pin header before purchase. This adapter only provides data function and cannot support highpower fastcharging. Great accessory for DIY computer building, case refitting and internal USB port expansion.

Additional Information
First Listed on Newegg	August 12, 2026

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Return for refund within: 30 days
Return for replacement within: non-replaceable
This item is covered by Tech Cabin Return Policy

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Item#: 9SIB3ENM3S6456