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StarTech.com PEXUSB312C3 2-Port PCIe USB 3.1 Card - 2 x USB-C - USB 3.1 Gen 2 - Up to 10Gbps
- PCI Express to USB Card
- USB 3.1 Gen 2
- up to 10 Gbit/s Data Transfer Rate
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Overview
Specs
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Warranty & Returns
Warranty, Returns, And Additional Information
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Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-265-1844
- Support Email: support@startech.com
- Support Website
- View other products from STARTECH
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The StarTech.com PEXUSB312C3 is a PCIe add-in card that adds two USB-C USB 3.1 Gen 2 ports with data transfer rates up to 10Gbps, suited to desktop or server users connecting fast external storage and other USB-C data devices.
Recommended For
- Desktop or server users who regularly move large files to or from USB-C external SSDs, such as for backups, video editing, or data recovery, and have an available PCIe x4-or-higher slot.
- PC owners whose desktop lacks enough USB-C ports and who want to add two rear-panel USB-C data ports through an internal PCIe card rather than use an external hub.
- People upgrading an older PCIe desktop or building a PC who need USB-C connections for 10Gbps-compatible storage and other data peripherals.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Adding two USB-C data ports to a PCI Express-enabled computer or server with an x4-or-higher slot |
| USB Ports And Performance | Two USB-C ports support USB 3.1 Gen 2 data transfer up to 10 Gbps; they do not support DisplayPort Alt Mode or USB Power Delivery. Maximum throughput depends on the PCIe generation: up to 2.5 Gbps on Gen 1, 5 Gbps on Gen 2, or 10 Gbps on Gen 3 |
| Host Interface And Compatibility | PCIe x4 card for an x4, x8, or x16 slot; includes standard- and low-profile bracket support. Uses the ASMedia ASM3142 chipset |
| Protocols And Standards | Supports UASP and conforms to USB 3.2 Specification Rev. 2.0, USB Specification Rev. 2.0, PCI Express Base Specification Rev. 3.0, and Intel xHCI Specification Rev. 1.1 |
| Power | Includes an internal SATA power connector for optional supplemental power to high-power devices |
| Operating System Compatibility | Supports Windows 7, 8, 8.1, and 10; Windows Server 2008 R2, 2012, 2016, and 2019; Linux 3.5–4.11.x LTS; and macOS High Sierra 10.13, Mojave 10.14, and Catalina 10.15 |
| Physical Design | Measures 4.8 × 3.1 × 0.7 inches and weighs approximately 0.10 lb (0.045 kg) |
| Package Contents | USB 3.1 card, low-profile bracket, and quick start guide |
| Model Identifiers | StarTech.com PEXUSB312C3 |










