This article covers StarTech.com 5ポート USB PCIeカード.

Overview

The StarTech.com PS4C3IA3-USB-C-CARD is a PCI Express expansion card that adds five USB 3.2 Gen 2 (10Gbps) ports to a desktop PC or server. It provides four external USB Type-C ports and one internal USB Type-A port, significantly expanding connectivity beyond what most motherboards offer. Powered by the ASMedia ASM3142 controller, each port delivers up to 10Gbps transfer speeds, making it ideal for large file transfers, external storage, VR headsets, or capture devices. The card ships with a pre-installed standard-profile bracket and includes a low-profile bracket for small form factor (SFF) builds.

Connectivity & Compatibility

The card uses a PCI Express x4 interface and works in x4, x8, or x16 slots, ensuring broad compatibility with both modern and older motherboards. It supports Windows 8 and later, macOS, and Linux with automatic driver installation. External ports: 4× USB Type-C (USB 3.2 Gen 2, 10Gbps). Internal port: 1× USB Type-A (10Gbps) for front-panel or internal device connections. An optional SATA power connector provides supplemental power — up to 5V/3A (15W) per Type-C port and 5V/1.5A (7.5W) for the Type-A port — when the motherboard's power delivery is insufficient.

Product Info

Released in 2024, the StarTech.com PS4C3IA3-USB-C-CARD occupies a mid-range position in the USB expansion card market. It offers four USB-C ports at 10Gbps without the cost or complexity of Thunderbolt 4 or USB4. The card comes with a 2-year manufacturer warranty. Included accessories: standard bracket (pre-installed), low-profile bracket, and SATA power cable. It is available on for around ¥12,000.

Best Use Cases

Users needing more USB ports on a desktop PC: If your motherboard's rear I/O is insufficient, this card adds four USB-C ports in a single slot. Ideal for connecting multiple external SSDs, docks, or peripherals simultaneously. Small form factor (SFF) builders: The included low-profile bracket makes it easy to install in Mini-ITX or slim desktop cases, as long as one PCIe slot is free. * Creative professionals requiring fast transfers: With 10Gbps per port, transferring large RAW photo libraries or 4K video files is noticeably faster. Pair it with an external NVMe SSD for a smooth editing workflow.

Product Disclosure (Amazon)

  • Manufacturer: StarTech.com
  • Brand: StarTech.com(スターテック)
  • Seller: Startech Japan KK
  • Fulfilled by: Amazon
  • Model: PS4C3IA3-USB-C-CARD
  • ASIN: B0D8WDPD74
  • Note: This article covers a manufacturer-made product based on Amazon listing details.