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Green PCIe card with two USB-C ports on a metal bracket

Corn Electronics

Corn Electronics USB 3.1 Two-Port 10Gb PCIe Card

SKU CH-8MP4-B68BE

Adds two 10Gbps USB-C 3.2 Gen 2 ports via PCIe with 15W power each, auto-negotiating full speed in 2.0 or 3.0 slots

  • Adds two 10 Gbps USB-C ports for faster transfers
  • Each port delivers up to 15 W to power bus-powered drives
  • Independent power regulation prevents cross-coupled glitches and accidental disconnects
  • Auto-negotiates PCIe lanes for full 10 Gbps speed in 2.0 or 3.0 slots
  • Backed by free lifetime support since 1986

Two 10Gbps USB-C ports

This PCIe add-in card adds two SuperSpeed+ USB-C ports, each capable of 10Gbps transfer rates. It fits Mac Pro systems with PCIe slots, Windows PCs, Linux machines or Thunderbolt-to-PCIe expansion chassis. The USB 3.2 Gen 2 interface moves data up to twice as fast as USB 3.0 connections.

Suited for high-speed external storage

The card suits users who connect bus-powered SSDs, SSD RAID arrays or hard drives that draw up to 15W per port. Independent power regulation on each port prevents cross-coupled glitches that can cause accidental disconnects. Builders who need more than two ports or require internal headers should consider a different controller.

Sustained throughput via lane negotiation

Under continuous load the card auto-negotiates its PCIe link width: one lane in a 3.0 slot or two lanes in a 2.0 slot. This behaviour preserves the full 10Gbps per port regardless of slot generation. The design targets steady-state transfers rather than short burst speeds.

Highlights

  • Adds two 10 Gbps USB-C ports for faster transfers
  • Each port delivers up to 15 W to power bus-powered drives
  • Independent power regulation prevents cross-coupled glitches and accidental disconnects
  • Auto-negotiates PCIe lanes for full 10 Gbps speed in 2.0 or 3.0 slots
  • Backed by free lifetime support since 1986

Specifications

No published specifications for this item yet.

Questions about this item

What free PCIe slot width does the Corn Electronics card need to run at 10 Gbps?

It auto-negotiates one lane in a PCIe 3.0 slot or two lanes in a PCIe 2.0 slot, delivering full 10 Gbps throughput in either generation.

Will the card supply 15 W to each USB-C port if I keep my older USB 3.0 drives connected?

Yes, each port provides up to 15 W independently, so legacy USB 3.0 devices draw only what they need while newer bus-powered SSDs receive the full 15 W.

How can I verify both ports are operating at 10 Gbps after installation?

Check the OS device manager or system profiler — each port should enumerate as USB 3.2 Gen 2 (10 Gbps) and attached SSDs should show transfer speeds approaching 10 Gbps.

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