---
product_id: 99688019
title: "Sonnet Allegro USB-C 4-Port PCIe Card | Dual 10Gb controllers with four USB-C ports and 7.5W power for Mac Pro, Windows PC and Linux computers"
brand: "sonnet"
price: "1056.73 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Sonnet"
url: https://www.desertcart.tn/products/99688019-sonnet-allegro-usb-c-4-port-pcie-card-dual-10gb
store_origin: TN
region: Tunisia
---

# 7.5W powered ports each PCIe x4 interface for max throughput 4x 10Gbps USB-C ports Sonnet Allegro USB-C 4-Port PCIe Card | Dual 10Gb controllers with four USB-C ports and 7.5W power for Mac Pro, Windows PC and Linux computers

**Brand:** sonnet
**Price:** 1056.73 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your rig with Sonnet Allegro — where speed meets power and reliability!

## Quick Answers

- **What is this?** Sonnet Allegro USB-C 4-Port PCIe Card | Dual 10Gb controllers with four USB-C ports and 7.5W power for Mac Pro, Windows PC and Linux computers by sonnet
- **How much does it cost?** 1056.73 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/99688019-sonnet-allegro-usb-c-4-port-pcie-card-dual-10gb)

## Best For

- sonnet enthusiasts

## Why This Product

- Trusted sonnet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Controller Architecture:** Two USB 3.2 Gen2 controllers optimize bandwidth and reliability, perfect for high-demand SSD RAID setups or multiple peripherals.
- • **Future-Proof Your Workstation:** Add modern USB-C connectivity to legacy PCIe slots, transforming your Mac Pro or PC into a cutting-edge productivity hub.
- • **Blazing-Fast USB 3.2 Gen2 Speeds:** Experience up to 10Gbps data transfer on all four USB-C ports, doubling the speed of older USB 3.1 Gen1 standards.
- • **Seamless Cross-Platform Compatibility:** Plug & play support for Mac Pro (macOS 10.13+), Windows 11+, and Linux systems—no driver hassle required.
- • **Power-Packed Ports with Smart Regulation:** Each port delivers up to 7.5W with independent power delivery to prevent disconnects and ensure stable device charging.

## Overview

The Sonnet Allegro USB-C 4-Port PCIe Card equips your Mac Pro or Windows PC with four ultra-fast 10Gbps USB-C ports powered by dual USB 3.2 Gen2 controllers. Each port supports up to 7.5W power delivery with independent regulation to prevent disconnects, ensuring stable connections for bus-powered SSDs and peripherals. Compatible across macOS, Windows 11+, and Linux, this PCIe x4 card is a premium, plug-and-play solution to modernize legacy workstations with high-speed USB-C connectivity.

## Description

Buy Sonnet Allegro USB-C 4-Port PCIe Card: USB Port Cards - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Works great - I'm using it on PC and it's been working flawlessly for months now. It's expensive but worth it if you want a high quality, reliable card. The cheap cards are cheap for a reason. Buy this one.
Review: USB-C added to 2010 Mac Pro!!! - A very easy installation in the PCIe slot upon installing in a 2010 Mac Pro 5,1 dual 3.46GHz Intel 6-core. The quality is excellent with its functionality and connectivity recognizable upon starting up the computer and no driver support needed because it’s not required if the Mac is operating macOS 10.13 High Sierra or above. A little pricey for its value, but the overall design is well built and sturdy.

## Features

- 4-Port USB 3.2 Gen2 – Adds four 10Gbps USB-C ports (not Thunderbolt) to your Mac Pro or Windows PC with PCIe slots
- Dual USB 3.2 Gen 2 Controllers – Support data transfers at up to twice as fast as USB 3 Gen 1
- Powered Ports – Supports USB-C bus-powered SSD or SSD RAID with up to 7.5W per port
- Protected Power Delivery – Independent per-port power regulation isolates each port to prevent cross-coupled power glitches that may cause accidental disconnects
- Mac, Windows 11+, and Linux Compatible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L8KCQPT |
| Best Sellers Rank | #136 in Internal USB Port Cards |
| Brand | Sonnet |
| Built-In Media | Sonnet Allegro USB-C 4-Port USB 3.1 Gen 2 PCIe Card, Thunderbolt Compatible |
| Compatible Devices | Personal Computer |
| Customer Reviews | 4.1 out of 5 stars 158 Reviews |
| Global Trade Identification Number | 00732311012648 |
| Hardware Interface | PCI Express x4 |
| Item Highlight | Dual 10Gb controllers with four USB-C ports and 7.5W power for Mac Pro, Windows PC and Linux computers |
| Item Weight | 68 g |
| Manufacturer | Sonnet Technologies |
| Mfr Part Number | USB3C-4PM-E |
| Model Number | USB3C-4PM-E |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operating System | Windows 11 |
| Style | Classic |
| Style Name | Classic |
| UPC | 732311012648 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Limited Warranty |

## Product Details

- **Brand:** Sonnet
- **Hardware Interface:** PCI Express x4
- **Style:** Classic
- **Item Weight:** 68 Grams
- **Compatible Devices:** Personal Computer, Laptop, SSD, HD, SSD RAID, USB 3.2 Gen 1, Gen 2 & 2x2, USB 3.1 Gen 1 & 2, USB 3.0, 2.0 and 1.1

## Images

![Sonnet Allegro USB-C 4-Port PCIe Card | Dual 10Gb controllers with four USB-C ports and 7.5W power for Mac Pro, Windows PC and Linux computers - Image 1](https://m.media-amazon.com/images/I/81fWgSijteL.jpg)

## Questions & Answers

**Q: Does anyone know if this card conflicts with a gigabyte gc-titan ridge thunderbolt 3 pcie card in a cmp 4,1 or 5,1?**
A: There should not be any conflict.

**Q: Does this support video output when installed in 2012 mac pro?**
A: No

**Q: Will this work with a dell xps 8940. i cannot find any documentation on dell's website regarding the single pci-e slot that's available?**
A: No it won’t work on Dells. I found that out the hard way. Stick to Startech. I tried many and they are the only ones that work.

**Q: Does support pci 4.0? and does support window 10?**
A: All Sonnet cards of all types support PCIe 4.0 slots and Windows 10.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by A***N on August 7, 2026*

I'm using it on PC and it's been working flawlessly for months now. It's expensive but worth it if you want a high quality, reliable card. The cheap cards are cheap for a reason. Buy this one.

### ⭐⭐⭐⭐⭐ USB-C added to 2010 Mac Pro!!!
*by K***. on July 3, 2025*

A very easy installation in the PCIe slot upon installing in a 2010 Mac Pro 5,1 dual 3.46GHz Intel 6-core. The quality is excellent with its functionality and connectivity recognizable upon starting up the computer and no driver support needed because it’s not required if the Mac is operating macOS 10.13 High Sierra or above. A little pricey for its value, but the overall design is well built and sturdy.

### ⭐⭐⭐⭐ I wanted to like this card, though.....
*by J***. on June 29, 2026*

Sonnet Allegro USB-C 4-Port PCIe Card Review I really wanted to like this card, but a few issues kept it from being the upgrade I was hoping for. Installation was refreshingly simple. I installed it in my MSI Infinite RS (Intel Core i9-13900KF) running Windows 11, and the system recognized it immediately. No drivers, no firmware updates, and no troubleshooting required. Data transfer speeds with external USB-C SSDs were excellent and met my expectations. Where things started to unravel was when I began connecting multiple USB-C cameras. The card proved to be surprisingly finicky, and the USB-C ports did not grip high-speed cables very securely. Even the slightest movement of a cable was enough to trigger a disconnect, which is less than ideal when you're trying to maintain reliable camera connections. After more trial and error than I'd like to admit, along with a generous supply of Velcro cable ties to keep everything perfectly still, I eventually got the cameras working. However, I had to uninstall and reinstall each camera individually before the system would recognize them reliably. One thing prospective buyers should also consider is the cost of quality cables. Plan on spending around $45 per cable for certified 10 Gbps USB-C cables. You'll find 20 Gbps cables that cost nearly twice as much, but they're unnecessary since this card is limited to 10 Gbps anyway. I was especially disappointed that my Anker USB-C to USB-C cables would not stay firmly seated in the ports. I've had consistently good experiences with Anker products over the years, so this was unexpected. Overall, this card delivers solid transfer speeds and installs effortlessly. However, if your application involves multiple USB-C cameras or equipment that requires absolutely stable physical connections, be prepared for some frustration... and perhaps keep a roll of Velcro cable ties nearby. They may become the unsung hero of your installation.

## Frequently Bought Together

- Sonnet Allegro USB-C 4-Port PCIe Card
- Sonnet Allegro Pro USB 3.2 Type A PCIe Card (Four SuperSpeed 10Gbps USB Connectors)
- Allegro Type A USB 3.2 | 3.0 PCIe 4-Port PCIe Card (Mac and Windows Compatible)

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**Shop now:** [https://www.desertcart.tn/products/99688019-sonnet-allegro-usb-c-4-port-pcie-card-dual-10gb](https://www.desertcart.tn/products/99688019-sonnet-allegro-usb-c-4-port-pcie-card-dual-10gb)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-13*