PCIe expansionProduct link
StarTech Four-controller USB 5Gbps card
PEXUSB3S44V
Give bandwidth-sensitive USB instruments separate host controllers.
- Interface
- PCIe x4
- Format
- Standard height + low-profile bracket
PCIe / StarTech.comHARDWARE EDIT
Category illustration · not a product photograph
PCIE EXPANSION / PEXUSB312C3
StarTech Dual USB-C 10Gbps card
Connect modern USB-C data devices directly to a desktop PCIe host.
IN YOUR WORKFLOWWorkstation I/O expansion
As an Amazon Associate I earn from qualifying purchases. Amazon links are paid links. Check current price, seller and availability on Amazon.
Amazon listing unverified; this link searches the exact model. Live availability is unverified. Confirm stock, seller, exact model and price on Amazon.
THE DETAILS THAT MATTER
At a glance.
- Brand
- StarTech.com
- Model
- PEXUSB312C3
- Interface
- PCIe x4
- Form factor
- Standard height + low-profile bracket
- Ports
- 2
- Connection
- USB-C
- Link rate
- 10 Gbps
- Controller
- ASMedia - ASM3142
Direct PCIe evidence
Debug the controller’s PCIe side first.
StarTech Dual USB-C 10Gbps card is a PCIe host controller. The workbench can inspect its host connection while USB peripherals, power delivery and port behavior remain separate checks.
- Confirm the required slot, auxiliary power, motherboard headers and firmware support. Identify the controller’s PCI address on the Linux host.
- Import its collector JSON into the workbench. Review enumeration, driver binding, resources and current versus maximum PCIe link values.
- If relevant errors appear, add the controller’s AER or IOMMU log lines and compare a known-good capture. Test downstream ports and peripherals with their supported operating-system tools.
Header7F inspects PCIe evidence. It does not enumerate USB devices, negotiate USB4/Thunderbolt authorization, test power delivery or certify a cable’s data rate.