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Silver 5.25-inch front panel with four USB-A ports and internal 20-pin header cable

Shenzhen Shenzhong TECH. CO. LTD.

Shenzhen Shenzhong TECH. CO. LTD. USB 3.0 4-Port Hub 20-Pin Cable 5.25" Bay

SKU CH-9197-X77JA

Adds four USB 3.0 ports to a 5.25-inch bay via a 20-pin motherboard header, delivering up to 5 Gbps per port

  • Connector TypeUSB A to USB B
  • Four USB 3.0 ports add front-panel connectivity via a single 20-pin header
  • GL3520 chipset drives reliable Super-Speed 5 Gbps transfers
  • Backward compatible with USB 2.0 480 Mbps and USB 1.1 1.5 Mbps devices
  • Each port supplies up to 900 mA for power-hungry peripherals
  • Fits a standard 5.25-inch bay for clean internal installation

Front-panel USB 3.0 hub for 5.25-inch bay

This hub adds four USB 3.0 Type-A ports to the front of a desktop by occupying a standard 5.25-inch optical-drive bay. It connects to the motherboard through a single 20-pin internal header and uses a GL3520 controller. The unit is aimed at builders who want convenient, high-speed peripheral access without opening the case.

Thermals, noise and power draw

The device has no fan or active cooling, so it runs silently and adds negligible heat to the chassis. Each port can supply up to 900 mA, drawing that current from the motherboard header. Idle power consumption is minimal because the hub only activates when a device is attached.

Sustained-load behaviour

Under continuous transfers the GL3520 chipset maintains USB 3.0 Super-Speed at 5 Gbps and falls back to USB 2.0 Hi-Speed at 480 Mbps or USB 1.1 Low-Speed at 1.5 Mbps as needed. The hub does not throttle due to temperature, but total simultaneous current across all four ports is limited by the 900 mA per-port maximum and the motherboard header rating.

Highlights

  • Four USB 3.0 ports add front-panel connectivity via a single 20-pin header
  • GL3520 chipset drives reliable Super-Speed 5 Gbps transfers
  • Backward compatible with USB 2.0 480 Mbps and USB 1.1 1.5 Mbps devices
  • Each port supplies up to 900 mA for power-hungry peripherals
  • Fits a standard 5.25-inch bay for clean internal installation

Specifications

Connector TypeUSB A to USB B

Questions about this item

How do I connect the 20-pin header to my motherboard and which step is often missed?

Plug the 20-pin connector into the motherboard's internal USB 3.0 header, secure the hub into the 5.25-inch bay, then attach the external power cable; the step most often missed is connecting that power cable so each port can deliver the full 900 mA.

What part will need replacement first on the GL3520 hub?

The GL3520 chipset and USB A ports are soldered, so no user-serviceable parts exist; if a port fails the whole hub must be replaced.

At what transfer rate does the hub saturate during sustained heavy use?

The Super-Speed link caps at 5 Gbps shared across the four ports, so sustained writes to multiple drives will hit that aggregate ceiling first.

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