--- product_id: 99688019 title: "Sonnet Allegro Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux" brand: "sonnet" price: "€ 314.28" currency: EUR in_stock: true reviews_count: 13 category: "Sonnet" url: https://www.desertcart.hr/products/99688019-sonnet-allegro-pro-usb-c-4-port-10gbps-usb-3 store_origin: HR region: Croatia --- # 7.5W powered ports each PCIe x4 interface for max throughput 4x 10Gbps USB-C ports Sonnet Allegro Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux **Brand:** sonnet **Price:** € 314.28 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your rig with Sonnet Allegro — where speed meets power and reliability! ## Quick Answers - **What is this?** Sonnet Allegro Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux by sonnet - **How much does it cost?** € 314.28 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/99688019-sonnet-allegro-pro-usb-c-4-port-10gbps-usb-3) ## 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 Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux | 20Gbps combined throughput; up to 7.5W per port; independent power regulation; charge-and-sync support: 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: Great way to modernize any desktop - I plugged this card into a 5 year old desktop (MSI X99 SLI PLUS with Intel Core i7-5960X) and it works flawlessly, using both Ubuntu and Windows 10. Main downside: The card is pretty expensive. $130 seems like too much for a few ports. However, there is a lot to like: - The USB ports are actually faster than my old onboard Type-A. Oculus Link works perfectly. Using a Samsung T5 external SSD I am seeing read rates of 554 MB/s (which is probably limited by the SSD). - I was a bit worried about the ports being so far to the side (as opposed to centered). This is an odd design choice, but luckily it hasn't been a problem for any of the cables I have. They all fit well. - A nice surprise: The description claims "up to 7.5W power per port". I have actually measured 5V/3A on a single port, so the card over-delivers here. - This card embraces modern ports and instead of adding more legacy ports (which I have more than enough of anyway, especially given that all of my peripherals have been Type-C for years now). Given how even brand-new motherboards usually just come with just a single Type-C (but plenty of Type-A), that is really nice. ## 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 | #47 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 | 4.0 out of 5 stars 159 Reviews | | Global Trade Identification Number | 00732311012648 | | Hardware Interface | PCI Express x4 | | Item Highlight | 20Gbps combined throughput; up to 7.5W per port; independent power regulation; charge-and-sync support | | Item Weight | 68 g | | Manufacturer | SONNETTECH | | 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 Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux - Image 1](https://m.media-amazon.com/images/I/81fWgSijteL.jpg) ![Sonnet Allegro Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux - Image 2](https://m.media-amazon.com/images/I/71uw0tgteCL.jpg) ![Sonnet Allegro Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux - Image 3](https://m.media-amazon.com/images/I/71K7HeR57uL.jpg) ![Sonnet Allegro Pro USB-C 4-Port 10Gbps USB 3.2 PCIe Card Mac Windows Linux - 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. ### ⭐⭐⭐⭐⭐ Great way to modernize any desktop *by D***N on April 4, 2020* I plugged this card into a 5 year old desktop (MSI X99 SLI PLUS with Intel Core i7-5960X) and it works flawlessly, using both Ubuntu and Windows 10. Main downside: The card is pretty expensive. $130 seems like too much for a few ports. However, there is a lot to like: - The USB ports are actually faster than my old onboard Type-A. Oculus Link works perfectly. Using a Samsung T5 external SSD I am seeing read rates of 554 MB/s (which is probably limited by the SSD). - I was a bit worried about the ports being so far to the side (as opposed to centered). This is an odd design choice, but luckily it hasn't been a problem for any of the cables I have. They all fit well. - A nice surprise: The description claims "up to 7.5W power per port". I have actually measured 5V/3A on a single port, so the card over-delivers here. - This card embraces modern ports and instead of adding more legacy ports (which I have more than enough of anyway, especially given that all of my peripherals have been Type-C for years now). Given how even brand-new motherboards usually just come with just a single Type-C (but plenty of Type-A), that is really nice. ### ⭐ This card only works on a PCIE Gen 3 slot, check first before purchasing *by G***M on September 11, 2026* This card only works on a PCIE Gen 3 slot. Anything lower like Gen 2 or Gen 1 just does not have enough power to effectively run this PCIE card. I spent three hours troubleshooting my computer BIOS util I realized the root cause. Where Sonnet really failed in their design was to not include a power plug you can run off your PCU to supply power needed to run this PCIE card. Huge design flaw. The Startech counterpart comes with a plug and splitter cable so power or Gen 2 vs. Gen 3 slots will not be an issue. Be careful before you purchase or try to add USB C to your computer. I hope this review helps people avoid the issue I ran into. After hours of research and troubleshooting the most elegant solution you have if you don't have a spare PCIE Gen 3 port available are the following products: https://www.amazon.com/dp/B08T6FCF9S?ref=ppx_yo2ov_dt_b_fed_asin_title https://www.amazon.com/dp/B0B7KM1RKV?ref=ppx_yo2ov_dt_b_fed_asin_title The Startech runs on a gen 2 PCIE port and avoids the need to play with your PCU. Just plug and play and you have a working USB c port. The Startech Hub plugs into an external power source and gives you four working USB C ports that work flawlessly. I hope this helps and enjoy a very simple solution if you don't have a spare PCIE Gen 3 port to work with. ## 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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/99688019-sonnet-allegro-pro-usb-c-4-port-10gbps-usb-3](https://www.desertcart.hr/products/99688019-sonnet-allegro-pro-usb-c-4-port-10gbps-usb-3) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-10*