Dual USB 3.0 typeA female to motherboard 20/19pin box header slot adapter that enhances PC internal USB connections What this is A compact adapter that provides two USB 3.0 typeA female ports from a standard motherboard USB header (20pin or 19pin), enabling internal USB 3.0 connectivity for your PC. Key benefits Expands internal USB 3.0 capability by delivering two speed USB 3.0 ports from the motherboard header. Maintains compatibility with existing devices thanks to USB 2.0 and USB 1.1 backward compatibility. Simple to install and integrates with existing PC setups for frontpanel or internal connections. Compatibility and performance Backward compatible with USB 2.0 and USB 1.1 devices; you can continue using current peripherals while benefiting from USB 3.0 speeds with compatible devices. Supports USB 3.0 data transfer when connected to a USB 3.0 capable motherboard header. Material and durability ABS construction provides durability and reliable performance for USB 3.0 connections. Design details Fits standard 20pin or 19pin motherboard USB headers. Dual USB 3.0 typeA female ports to accommodate two internal USB 3.0 connections. Use scenarios Scenario 1: Add internal USB 3.0 ports to a desktop by wiring to the motherboard header for a frontpanel USB 3.0 hub or card reader. Scenario 2: Integrate internal USB 3.0 devices such as adapters or small hubs into the existing system for improved internal accessibility. Scenario 3: Upgrade an older build by introducing USB 3.0 connectivity while preserving compatibility with USB 2.0/1.1 peripherals. Practical notes Confirm your motherboard header type (20pin or 19pin) to ensure full compatibility with this adapter.