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Small black PCB board with four USB ports and PCIe connector 82 by 39mm

Bazarc

Bazarc PCIe to USB 3.2 Gen1 Expansion Board Black 82 x 39mm

SKU CH-DMZE-HN7WR

Adds four USB 3.2 Gen1 ports to a Compute Module 4 IO Board via PCIe with VL805 plug-and-play and 12 V power options

  • TypeOther
  • Four USB 3.2 Gen1 ports expand connectivity for Compute Module 4
  • VL805 controller enables driver-free plug-and-play operation
  • Dual power options via PCIe 12 V or DC jack
  • Compact 82 x 39 mm board fits tight enclosures
  • Backward compatible with USB 3.0, 2.0 and 1.1 devices

PCIe to USB 3.2 Gen1 Expansion Board for CM4

This expansion board adds four USB 3.2 Gen1 ports to a Compute Module 4 IO Board via a PCIe connection. It uses the VL805 controller for driver-free operation and maintains backward compatibility with USB 3.0, 2.0 and 1.1 devices.

Verify PCIe slot and 12V power on your CM4 carrier

The board requires an available PCIe interface on the CM4 IO Board and a 12V power source from either the PCIe slot or the onboard DC jack. It cannot connect directly to a standard PC motherboard without a PCIe extender cable. Confirm your carrier provides the necessary slot and power delivery.

Suits CM4 IO Board builds needing extra USB ports

Ideal for embedded projects that require additional high-speed USB ports on a Compute Module 4 platform. Not suitable for users wanting to add USB ports directly to a desktop PC motherboard or for builds that lack a PCIe extender and 12V power capability.

Highlights

  • Four USB 3.2 Gen1 ports expand connectivity for Compute Module 4
  • VL805 controller enables driver-free plug-and-play operation
  • Dual power options via PCIe 12 V or DC jack
  • Compact 82 x 39 mm board fits tight enclosures
  • Backward compatible with USB 3.0, 2.0 and 1.1 devices

Specifications

TypeOther

Questions about this item

What comes in the box and do I need a separate PCIe extension cable?

The box contains one expansion board with four USB 3.2 Gen1 ports. The board does not plug directly into a PC motherboard; a PCIe extension cable is required to connect it.

Which power option should I choose between the PCIe 12 V supply and the 12 V DC jack?

Both deliver 12 V. Use the PCIe slot power when the board is mounted on a Compute Module 4 IO board; use the DC jack when an external 12 V adapter is more convenient.

What real-world USB speed can I expect from the VL805 controller on a CM4?

The VL805 provides four USB 3.2 Gen1 ports compatible with USB 3.0, 2.0 and 1.1. Actual throughput depends on the CM4's single PCIe 2.0 lane, so sustained speeds will be below the 5 Gbit/s nominal rate.

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