# StarTech.com P10Q4C-USB-CARD Review | 4-Port USB Type-C 10Gbps Expansion Card | Interface 

> StarTech. com P10Q4C-USB-CARD adds 4 independent 10Gbps USB Type-C ports via PCIe 3.0 x4. Ideal for expanding connectivity on desktop PCs and

Tags: usb拡張カード, pcie 3.0, usb type-c, startech
Source: https://www.amazon.co.jp/dp/B0F7NBCW4K
Article page: https://web-autoai.com/articles/startechcom-pci-express-pcie-30-x4-4-usb-type-c-32-gen-2?lang=en

Prices and ratings change over time — check the article page for the current values.

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## Overview
The StarTech. com P10Q4C-USB-CARD is a PCI Express expansion card that adds four USB Type-C ports to a desktop PC or server. Each port supports data transfer speeds up to 10Gbps and is backed by its own dedicated USB controller, ensuring full bandwidth is maintained even under heavy multi-device usage. This card requires a PCIe 3.0 x4 or higher slot and includes an auxiliary SATA power connector to deliver up to 15W (5V 3A) per port. It is designed for data-only connections, making it ideal for high-speed external storage, USB networking adapters, and other bandwidth-intensive peripherals.
The interface is PCI Express 3.0 x4 or above, and the card ships with a standard-profile bracket pre-installed; a low-profile bracket is included for compact chassis. Compatible operating systems include Windows, Linux, and macOS, with plug-and-play drivers for easy setup. Each port auto-negotiates speeds of 10Gbps, 5Gbps, 480Mbps, 12Mbps, or 1.1Mbps. If the motherboard cannot supply sufficient power, the built-in SATA power connector provides an alternative power source to the USB ports.
Manufactured by StarTech. com, a brand with over 35 years of IT pro solutions, it comes with free, unlimited technical support. This card is positioned in the mid-to-high tier, targeting professional and enterprise environments rather than casual home users. It is TAA compliant, making it suitable for government and institutional procurement.
First, this card is perfect for desktop users who need to connect multiple high-speed USB Type-C devices simultaneously, such as external SSDs, video capture cards, or 10GbE USB adapters. The dedicated controllers prevent bandwidth contention. Second, system administrators managing servers that require additional USB ports will appreciate the independent power delivery and robust build. Third, developers and creative professionals using Windows, Linux, or macOS can rely on stable, high-throughput connectivity for frequent large file transfers and peripheral expansion.