[ INDIVIDUAL COMPONENT // USB / FIREWIRE ]
StarTech PEXUSB3S4V
4 external Type-A USB 3.0 ports; auxiliary power. This model-specific archival record distinguishes documented product facts from platform-level compatibility assumptions.
MODEL SCOPE: SIIG JU-P40212-S1. Confirm board revision, exact product label, firmware, bracket, and accessories before installation.
Reference specifications
| Model identifier | StarTech PEXUSB3S4V |
|---|---|
| Host bus | PCI Express x1 |
| Interfaces and protocols | 4 external USB Type-A USB 3.0 (5 Gb/s) ports with UASP support and SATA auxiliary power. |
| Controller / chipset | Renesas/NEC μPD720201 USB host controller. |
| Driver and operating-system notes | StarTech Windows driver/inbox xHCI support by OS release; Linux xhci-pci support. |
| Compatibility and archival notes | Four external ports; low-profile bracket is included. Check auxiliary power, slot wiring and the host OS driver. |
Compatibility, care & archival notes
- Verify board revision, supported Windows and aggregate current limit.
- 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 — SIIG JU-P40212-S1 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.