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Allegro Pro USB-C 8-Port PCIe Card (8 ports • Four USB 3.2 controllers • x8 PCIe 3.0 bridge chip • Delivers full 10 Gbps per port)
Part No. USB3C-8PM-E
Allegro Pro USB-C 8-Port PCIe Card
8-port, USB-C 10 Gbps (USB 3.2 Gen 2) PCIe Card with Four USB Controllers Plus USB-C Charging
Pro Ports. Max Performance from Each One.
Pro PCIe adapter card with eight external USB-C ports, four USB 3.2 controllers, and an x8 PCIe 3.0 bridge chip. In computers equipped with multiple expansion card slots, every slot holds significant value, as there may not be enough space to install two 4‑port adapter cards. Sonnet Allegro™ Pro USB‑C 8‑Port PCIe Card is the first of its kind to offer eight high-performance USB‑C ports, all neatly arranged on a standard full-height PCIe card bracket. The ports are strategically spaced to allow for the connection of eight cables, including USB-C male to USB‑A female adapters.
Why Sonnet? Many multi‑port USB cards share the bandwidth of a single USB controller across their ports, which can reduce performance when multiple devices are connected and in use. However, when installed in a computer’s PCIe 3.0 or 4.0 slot, Sonnet’s card delivers the full 10 Gbps bandwidth to each of its eight ports, guaranteeing optimal performance for every connected device.
The Most Capable 10 Gbps USB Card. USB SSD Nirvana.
Equipped with NVMe SSDs, the fastest USB 3.2 Gen 2 drives available can transfer data at incredible speeds. Chances are your computer has few ports capable of supporting their full performance. Upgrade your workflow in a major way by installing Allegro Pro USB‑C 8‑Port PCIe Card in your Mac Pro, Windows, or Linux computer; or Echo III Thunderbolt Expansion System to support up to eight NVMe USB drives at maximum performance(1), no power adapters needed.
High Speed Simultaneous Transfers: 10 Gbps from Every Port!
Many multi‑port USB cards are simple hubs that split a single USB controller’s bandwidth between all its ports, which limits their performance when two or more devices are connected and operating. When installed in a computer’s PCIe 3.0 or 4.0 slot, Allegro card supports eight simultaneous 10 Gbps transfers. It is ideal for transferring data from multiple drives to the computer (and from drive to drive) — data transfers from a single USB 3.2 NVMe SSD device at up to 1000 MB/s. Compared to using a USB 3.1 Gen 1 or USB 3.0 adapter card, transfers complete in half the time!
Built to Perform: Advanced Bandwidth Management Architecture
Sonnet’s Allegro card boasts an advanced architecture that delivers a full 10 Gbps bandwidth to each port. It achieves this by allowing each USB controller to access two lanes of PCIe 3.0 through an x8 PCIe 3.0 bridge chip and employing sophisticated data traffic management techniques to prevent bandwidth congestion. By offering full‑bandwidth PCIe bridging to four controllers and effectively managing traffic, this Sonnet card stands out as the highest-performing USB 3.2 Gen 2 PCIe card ever created.
Sonnet Port Power Advantages
Sonnet designed the Allegro card with a focus on intelligent power delivery and management for attached drives powered through its ports — unlike ordinary USB adapter cards designed without attention to detail.
7.5W of Power Provided Through Each Port Simultaneously. This Allegro card supports eight USB bus‑powered SSDs or hard drives.
No Auxiliary Power Required. Ordinary USB cards need a separate power connection. Sonnet’s Allegro card draws all the power necessary to operate connected drives from the slot it’s installed in. This enables you to install the Sonnet card in any compatible computer or Thunderbolt expansion system regardless of it having extra power connectors available.
Independent, Per-Port Power Regulation. Allegro card protects each port from power glitches on neighboring ports to prevent auto-disconnects of already-connected drives. Ordinary USB cards can deliver poor power regulation, allowing a connected drive to be forced off (auto-disconnected) when an additional drive is connected or disconnected.
Resettable Fuses. Unlike ordinary USB cards, Allegro card features a resettable fuse on each port that protects both the card and computer should a cable or peripheral fail. Resetting a tripped fuse is simple — just shut down and then restart your computer.
Virtually Independent: Supports Four Independent Physical Connections to Virtual Machines (VMs)
Allegro Pro USB‑C 8‑Port PCIe Card’s four independent USB 3.2 controllers control a pair of ports each. If your VM software supports direct physical connections, then each of these four controllers can be independently attached to a separate virtual machine.
Broad Device Support: Easy Card Installation
Allegro card offers hot‑pluggable and hot‑swappable device connection support with automatic device configuration and works with all USB‑IF compliant USB peripherals. This full‑height Sonnet card installs easily into a PCIe x16 slot and does not require a driver installation.
Got a Sonnet Thunderbolt Expansion System?
Is your computer equipped with a Thunderbolt port but lacking a PCIe card slot? Allegro Pro USB‑C 8‑Port PCIe Card offers exceptional performance and is perfect for use with a Sonnet Thunderbolt expansion system. This combination allows you to connect up to eight USB devices, leveraging Thunderbolt’s high‑bandwidth transfer rates, to any computer featuring Thunderbolt ports.
Key Features & Specifications
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Eight 10 Gbps USB-C Ports On a Single Card – Adds eight USB‑C 10 Gbps ports to your computer or Thunderbolt expansion system.
- Supports Eight USB-C Cables – Ports are spaced to enable connection of eight cables (and even USB‑C male to USB‑A female adapters).
- Four Independent USB Controllers, Full 10 Gbps Bandwidth Per Port – A PCIe 3.0 bridge chip and four USB 3.2 controllers enable simultaneous data transfers at up to 1000 MB/s per port.
- Advanced Data Traffic Management – Multiple Ins support enables simultaneous transactions with multiple endpoint devices, helping eliminate data traffic congestion.
- Powered Ports – Supports USB-C bus-powered SSD, SSD RAID, and hard drive devices with up to 7.5W power per port.
- Protected Power Delivery – Individual power switches regulate current to each USB 3 port, reducing voltage fluctuations and preventing power loss.
- Supports Four Independent Physical Connections to VMs – Four independent USB 3.2 controllers can each be assigned to a separate virtual machine when supported by VM software.
- Supports Hot-Swappable Device Connections – Plug in and disconnect peripherals without shutting off your computer.
- Broad USB Device Support and Compatibility – Supports storage, hubs, and other USB-IF compliant devices.
- Easy Installation – Quick and easy installation into any available x16 PCIe slot, plus no driver installation required.
- Compatibility – Mac, Windows, and Linux computers and Thunderbolt expansion systems. See Tech Specs for details.
- Package Contents –Allegro Pro USB-C 8-Port PCIe Card; documentation.
- Warranty – 2-year product warranty.
- Customer Support – Lifetime technical support.
- The Sonnet Advantage – Innovating technology since 1986.
*Performance may be limited when the Allegro card is installed in a PCIe 2.0 slot, or in a Thunderbolt expansion system.
Note: Computers and accessories featured in photos are not included with the product. Product specifications are subject to change without notice.
Product Overview and Tech Specs
Visit: Product Page
Pre-sales Questions?
Contact: sales@sonnettech.com
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