---
product_id: 99688019
title: "Sonnet Allegro USB-C 4-Port PCIe Card"
brand: "sonnet"
price: "₨4826"
currency: SCR
in_stock: true
reviews_count: 13
category: "Sonnet"
url: https://www.desertcart.sc/products/99688019-sonnet-allegro-usb-c-4-port-pcie-card
store_origin: SC
region: Seychelles
---

# 7.5W powered ports each PCIe x4 interface for max throughput 4x 10Gbps USB-C ports Sonnet Allegro USB-C 4-Port PCIe Card

**Brand:** sonnet
**Price:** ₨4826
**Availability:** ✅ In Stock

## Summary

> 🚀 Power up your workflow with Sonnet Allegro’s USB-C speed and reliability!

## Quick Answers

- **What is this?** Sonnet Allegro USB-C 4-Port PCIe Card by sonnet
- **How much does it cost?** ₨4826 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/99688019-sonnet-allegro-usb-c-4-port-pcie-card)

## 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

- • **Smart Power Delivery:** Each port delivers up to 7.5W independently, ensuring stable connections without accidental disconnects.
- • **Quad USB-C Powerhouse:** Expand your Mac Pro or PC with four blazing-fast 10Gbps USB-C ports—future-proof your setup now.
- • **Dual 10Gbps Controllers:** Experience data transfers twice as fast as USB 3.1 Gen 1—perfect for heavy workflows and large file moves.
- • **Plug & Play Compatibility:** Seamlessly works with Mac (10.13+), Windows 11+, and Linux—no drivers needed, just pure productivity.
- • **Built to Last, Designed to Impress:** Premium build quality that professionals trust—because your gear should work as hard as you do.

## Overview

The Sonnet Allegro USB-C 4-Port PCIe Card adds four ultra-fast 10Gbps USB-C ports to your Mac Pro or Windows PC via PCIe x4 interface. Featuring dual USB 3.2 Gen 2 controllers and independent 7.5W power delivery per port, it ensures stable, high-speed data transfers and supports bus-powered SSDs. Compatible with macOS 10.13+, Windows 11+, and Linux, this plug-and-play card is a premium upgrade for professionals demanding reliable connectivity and future-ready performance.

## 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 | #104 in Internal USB Port Cards |
| Brand | Sonnet |
| Built-In Media | Sonnet Allegro USB-C 4-Port USB 3.1 Gen 2 PCIe Card with Dual 10Gb Controllers, |
| 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 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 - Image 1](https://m.media-amazon.com/images/I/81fWgSijteL.jpg)
![Sonnet Allegro USB-C 4-Port PCIe Card - Image 2](https://m.media-amazon.com/images/I/71uw0tgteCL.jpg)
![Sonnet Allegro USB-C 4-Port PCIe Card - Image 3](https://m.media-amazon.com/images/I/71K7HeR57uL.jpg)
![Sonnet Allegro USB-C 4-Port PCIe Card - Image 4](https://m.media-amazon.com/images/I/81Am9RmAPaL.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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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-09-03*