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Small green circuit board with gold pins and two female ports, one rectangular and one oval

SMUGDESK

SMUGDESK Internal USB-C/USB3.0 19/20Pin to USB3.0 20Pin + Type-E 5Gbps Splitter

SKU CH-S29M-2EVZQ

Converts one motherboard USB-C or USB 3.0 19/20Pin header into USB 3.0 20Pin and Type-E female ports at 5Gbps with optional SATA power input

  • Convert one motherboard header into two front-panel ports: USB3.0 20Pin and Type-E female
  • Built-in GL3510 controller delivers full 5Gbps USB3.1 Gen1 bandwidth, backward compatible with USB2.0 and USB1.1
  • Optional SATA 4Pin power input supplies stable 5V/2A for multi-device loads
  • Compact gold-plated PCBA board fits tight chassis spaces with plug-and-play operation
  • Works with mainstream desktop motherboards featuring USB3.0 19/20Pin or native Type-C internal headers

Internal USB-C Header Splitter

This PCBA adapter converts a single motherboard USB-C or USB 3.0 19/20Pin header into two independent female ports: a standard USB 3.0 20Pin and a Type-E A-Key connector. It suits builders who want to add a modern front-panel USB-C port without installing a PCIe expansion card. The GL3510 controller delivers full 5Gbps bandwidth while remaining backward compatible with USB 2.0 and 1.1 devices.

Build Integration Requirements

The splitter plugs directly into an existing 19/20Pin internal header and occupies minimal space inside the chassis thanks to its compact bare-board layout. Gold-plated contact pins resist oxidation for reliable signal conduction. A reserved SATA 4Pin power input can supply additional 5V current when multiple high-draw peripherals are connected simultaneously, preventing port drops under load. No drivers are required for operation.

Sustained Load Behaviour

Under continuous multi-device access the optional SATA auxiliary power maintains stable voltage to both ports, avoiding the instability that can occur when the motherboard header alone cannot deliver sufficient current. The GL3510 chip sustains 5Gbps super-speed throughput for SSDs, card readers and flash drives during extended transfers. Backward compatibility ensures older USB 2.0 and 1.1 peripherals continue to function without performance penalties.

Highlights

  • Convert one motherboard header into two front-panel ports: USB3.0 20Pin and Type-E female
  • Built-in GL3510 controller delivers full 5Gbps USB3.1 Gen1 bandwidth, backward compatible with USB2.0 and USB1.1
  • Optional SATA 4Pin power input supplies stable 5V/2A for multi-device loads
  • Compact gold-plated PCBA board fits tight chassis spaces with plug-and-play operation
  • Works with mainstream desktop motherboards featuring USB3.0 19/20Pin or native Type-C internal headers

Specifications

No published specifications for this item yet.

Questions about this item

How many devices can run at full 5Gbps before the single 19/20Pin header becomes the bottleneck?

The splitter shares one 5Gbps upstream link, so simultaneous high-speed transfers on both the USB3.0 20Pin and Type-E ports will contend for that bandwidth.

Does the board need the optional SATA power connector to stay cool and stable during all-day file transfers?

The SATA 4Pin input supplies extra 5V current for multiple devices; without it the ports rely on header power alone, which may limit sustained loads.

Which motherboard header must already be present — USB3.0 19/20Pin or native Type-C — for this splitter to work?

It plugs into either a standard USB3.0 19/20Pin header or a native Type-C internal header on the motherboard.

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