[ INDIVIDUAL COMPONENT // USB / FIREWIRE ]
StarTech PEXUSB3S25
2 external Type-A USB 3.0 ports; SATA auxiliary power. This model-specific archival record distinguishes documented product facts from platform-level compatibility assumptions.
MODEL SCOPE: StarTech PEXUSB3S25. Confirm board revision, exact product label, firmware, bracket, and accessories before installation.
Reference specifications
| Model identifier | StarTech PEXUSB3S25 |
|---|---|
| Host bus | PCIe 2.0 x1 |
| Interfaces and protocols | 2 external Type-A USB 3.0 ports; SATA auxiliary power |
| Controller / chipset | Renesas/NEC μPD720202 USB host controller |
| Driver and operating-system notes | Windows xHCI support varies; Linux xhci-pci |
| Compatibility and archival notes | Attach auxiliary power as specified for bus-powered devices; verify revision and older Windows driver. |
Compatibility, care & archival notes
- Attach auxiliary power as specified for bus-powered devices; verify revision and older Windows driver.
- Record PCB/revision identifiers, subsystem IDs, firmware and supplied accessories; OEM and retail versions may differ.
- Retain a verified backup and known-good driver/firmware before changing a working legacy configuration.
Sources & further reading
- Manufacturer — StarTech PEXUSB3S25 product referenceVendor reference for the named model or family; confirm exact revision and current archived manual.
- PCI-SIG — PCI Express specificationsBus terminology; physical slot fit does not guarantee electrical compatibility.
- Linux kernel — PCI support documentationGeneral enumeration reference, not a promise of support for every device feature.