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Black adapter with 19-pin header and two 9-pin USB 2.0 ports

Vszerda

Vszerda 19-pin USB 3.0 header to 2× USB 2.0 9-pin adapter

SKU CH-3PDK-4MRQE

Converts a motherboard 19-pin USB 3.0 header into two USB 2.0 9-pin ports running at 480 Mbps with 500 mA each

  • Connection typeUSB 3.0, USB Type A
  • Connector detailsUSB 3.0, USB Type A
  • Build detailsCopper
  • Product colorBlack
  • Expands one internal 19-pin USB 3.0 header into two USB 2.0 9-pin ports
  • Built-in USB 2.0 hub chipset delivers 480 Mbps data throughput per port
  • Each port supplies DC 5 V at 500 mA for connected devices
  • Backward compatible with USB 2.0 and USB 1.1 peripherals
  • Copper construction ensures reliable signal transmission

Purpose and audience

This adapter converts a single motherboard 19-pin USB 3.0 header into two 9-pin USB 2.0 connectors. It suits builders who need extra internal USB ports for front-panel devices or expansion cards.

Behaviour under sustained load

The on-board USB 2.0 hub chipset maintains a steady 480 Mbps data rate per port during continuous transfers. Each connector delivers a stable DC 5 V 500 mA current without throttling over long sessions.

Thermals noise and power

Passive copper construction produces no fan noise and adds negligible heat inside the chassis. The adapter draws only the 5 V supply provided by the motherboard header, requiring no extra power cable.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 80% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameVszerda
Product colorBlack
Ports & slots
Connection typeUSB 3.0, USB Type A
Connector detailsUSB 3.0, USB Type A
Size & build
Build detailsCopper

Questions about this item

Will the 19-pin header adapter draw noticeable power or generate heat when running all day?

Each of the two USB 2.0 ports is limited to 500 mA at 5 V, so total draw stays under 5 W and the small copper PCB produces negligible heat.

What must my motherboard already provide for this adapter to work?

A free internal 19-pin USB 3.0 header on the motherboard is required; the adapter plugs directly into that header.

Can I still use my older USB 1.1 and 2.0 peripherals with the two 9-pin ports?

Yes — the USB 3.0-A interface is backward-compatible with USB 2.0 and 1.1 devices, so legacy peripherals work at their native speeds.

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