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StarTech 4-Port USB 3.1 Gen 1 Type-A PCIe Adapter Card

BH #STPEXUSB3S44 • MFR #PEXUSB3S44V
11 reviews
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StarTech 4-Port USB 3.1 Gen 1 Type-A PCIe Adapter Card
Key Features
  • PCIe 2.0 x4 Host Connection
  • 4 x USB 3.1 Gen 1 Type-A Ports
  • Up to 5 Gb/s Throughput per Port
  • Up to 20 Gb/s Total Throughput
The 4-Port USB 3.1 Gen 1 Type-A PCIe Adapter Card from StarTech lets you add four dedicated 5 Gb/s USB 3.1 Gen 1 ports to your PCIe x4-enabled PC. This independent port architecture improves USB 3.1 Gen 1 performance by transferring data on four individual channels to your computer, giving you faster file transfers.
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StarTech PEXUSB3S44V Overview

The 4-Port USB 3.1 Gen 1 Type-A PCIe Adapter Card from StarTech lets you add four dedicated 5 Gb/s USB 3.1 Gen 1 ports to your PCIe x4-enabled PC. This independent port architecture improves USB 3.1 Gen 1 performance by transferring data on four individual channels to your computer, giving you faster file transfers.

When multiple devices are connected, traditional single-bus USB 3.1 Gen 1 cards share maximum bandwidth between all ports. By employing four host controller chipsets, each port operates on a separate independent transmission channel. Dedicating up to 5 Gb/s to each USB port reduces performance bottlenecks and effectively quadruples your total available bandwidth to 20 Gb/s.

The controller card is compliant with USB 3.1 Gen 1 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.1 Gen 1 PCIe card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form factor computers.

UASP Support
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.1 Gen 1 controller performs up to 70% faster than conventional USB 3.1 Gen 1 when paired with an External Drive Enclosures (Note: UASP requires a compatible operating system). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers.
UPC: 065030854627

StarTech PEXUSB3S44V Specs

Key Specs
Inputs/Outputs
4x USB-A 3.0 / 3.1/3.2 Gen 1
Expansion Slot Compatibility
PCIe 2.0 x4
General
Inputs/Outputs
4x USB-A 3.0 / 3.1/3.2 Gen 1
Expansion Slot Compatibility
PCIe 2.0 x4
Packaging Info
Package Weight
0.425 lb
Box Dimensions (LxWxH)
9.1 x 5.6 x 1.5"

StarTech PEXUSB3S44V Reviews

Great IO card

By Jeffrey W.
Rated 5 out of 5
Date: 2023-05-17

This card has 4 independent ports that all trnafer data at maximums speed even if all 4 ports are running at the same time In addsion it supports USAP devices like the StarTexck hard drive enclosure they it transfers data much faster than the 5 GB/s per channel. I bought a second card for my backup work station .

UNRAID Passthrough

By Peter Ando
Rated 5 out of 5
Date: 2021-02-25

This card is perfect for Unraid and VM's. The 4 separate controllers show up in Unraid in their own IOMMU groups allowing me to pass 1 port to each of my 4 VM's. You need to use the later version though, apparently the earlier cards don't do this. I'm using a Fracal Design 7 case and haven't had the same issues others have had with the ports being obstructed. I actually prefer the vertical ports as they appear to be tidier and easier for cable management when using all 4 ports. Suggestion: An 8 port model would be nice. 2 ports per controller. And support for qualcomm fast charging.

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