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Green circuit board with four blue USB ports and a 20-pin internal header

Vantec

Vantec UGT-PC345 4-Port USB 3.0 PCIe expansion card

SKU CH-PYCZ-TZQN7 MPN UGT-PC345

Adds four USB 3.0 ports — two external and two internal via a 20-pin connector — at up to 5.0 Gbps

  • External USB ports2x USB Ports
  • Internal USB ports2x USB Ports
  • Supported standardsUSB 3.0
  • Transfer speedUp to 5.0 Gbit/s
  • Supported operating systemsMicrosoft Windows XP, Vista, 7, & 8 (32/64bit)
  • Product typePCI Express to USB Card
  • Adds four USB 3.0 ports via a single PCIe slot
  • Two external and two internal 20-pin ports for flexible device connections
  • Up to 5.0 Gbps transfer rate moves large files quickly
  • Backwards compatible with USB 2.0 and 1.1 peripherals
  • Low-profile 120 x 80 x 19 mm card fits compact cases

Four-Port USB 3.0 Expansion Card

This PCIe add-in card adds two external and two internal USB 3.0 ports to a desktop system. The internal ports use a standard 20-pin header for front-panel or drive-bay brackets. It delivers SuperSpeed data rates up to 5.0 Gbps and remains compatible with USB 2.0 and 1.1 devices.

Builders Adding Front-Panel Ports

The card suits enthusiasts upgrading an older chassis that lacks native USB 3.0 headers or users who need extra high-speed ports for external drives and peripherals. It is not for systems without a free PCIe slot or for anyone requiring USB 3.1 or 3.2 transfer speeds beyond the 5.0 Gbps limit.

Single-Lane PCIe Interface

The controller connects through a single PCIe lane, so total bandwidth is shared across all four ports when multiple devices transfer simultaneously. This shared throughput is the key specification that determines whether the card meets a specific multi-device workload.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $32.99
Typical for this category: the median of 891 items is $30.99.

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Specifications

Product
Brand nameVANTEC
Model nameUGT-PC345
Product typePCI Express to USB Card
Performance
Transfer speedUp to 5.0 Gbit/s
Connectivity
Supported standardsUSB 3.0
Ports & slots
External USB ports2x USB Ports
Internal USB ports2x USB Ports
Size & build
Product dimensions120 × 80 × 19 mm
Shipping weight0.15 kg
Package size198 × 140 × 36 mm
Compatibility
Supported operating systemsMicrosoft Windows XP, Vista, 7, & 8 (32/64bit)

Questions about this item

Should I pick the version with two external and two internal ports or a different layout?

This model provides exactly two external USB 3.0 ports and two internal USB 3.0 ports using a 20-pin header, so there is no alternative layout to choose.

What does the 5.0 Gbps rate actually deliver when I plug in a drive?

The 5.0 Gbps figure is the theoretical maximum of the USB 3.0 interface; real-world throughput will be lower due to protocol overhead and the performance of the connected storage device.

Which PCIe interface does the card use and what bandwidth does that provide?

The card installs in a standard PCI Express slot; the USB 3.0 controller is limited to 5.0 Gbps per port regardless of the PCIe generation.

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