Unibrain USB 3.2 Quad-Channel PCIe Host Adapter, 3×10Gbps USB-A + 1×20Gbps USB-C (1242)
USB 3.2 PCIe host adapter with three 10Gbps USB-A ports and one 20Gbps USB-C port, delivering full per-port bandwidth via PCIe Gen3 x8.
USB-C Speed
20Gbps
USB-A Ports
3 × 10Gbps
PCIe Interface
Gen3 x8
Architecture
Full Bandwidth per Port
Technical Architecture & Functionality
The Unibrain USB 3.2 Quad-Channel PCIe Host Adapter (SKU 1242) is a high-performance USB expansion card designed to deliver maximum, non-shared USB bandwidth for demanding professional and industrial applications.
Unlike conventional USB PCIe cards that share bandwidth across multiple ports, this adapter provides full 10Gbps performance on each of three USB Type-A ports and up to 20Gbps (USB 3.2 Gen2×2) on a dedicated USB Type-C port, all through a single PCIe Gen3 x8 interface. This architecture ensures consistent throughput for high-speed storage, cameras, data acquisition systems, and other bandwidth-intensive USB devices.
The card is fully backward compatible with USB 3.x and USB 2.0 devices and complies with USB Attached SCSI Protocol (UASP) Revision 1.0, enabling efficient command queuing and improved performance for modern USB storage devices.
Designed for reliability and ease of deployment, the adapter supports USB hot-plug, includes over-current protection and detection on all downstream ports, and powers USB devices directly from the PCIe slot, eliminating the need for auxiliary power connectors.
With broad Windows and Linux support and compliance with CE, FCC, and RoHS standards, the Unibrain USB 3.2 Quad-Channel PCIe Host Adapter is an ideal solution for workstations, servers, and embedded systems requiring uncompromised USB performance.
Key Engineering Advantages
True full-bandwidth USB performance
Delivers dedicated 10Gbps bandwidth to each USB-A port and 20Gbps to the USB-C port without uplink contention.
High-speed USB-C Gen2×2 support
Includes a 20Gbps USB-C port for next-generation storage, capture, and data-intensive USB devices.
Workstation and server ready
PCIe Gen3 x8 interface provides ample bandwidth for professional workstations and server-class systems.
Reliable device protection
Built-in over-current protection and detection safeguard connected USB devices.
Efficient storage performance
UASP support improves throughput and reduces latency for modern USB storage devices.
Simple, power-efficient installation
No external power connectors required, with USB power supplied directly from the PCIe slot.
Feature Checklist
- PCIe Gen3 x8 standard-profile expansion card
- Four downstream USB 3.2 ports
- 3 × USB Type-A (USB 3.2 Gen 2, up to 10Gbps each)
- 1 × USB Type-C (USB 3.2 Gen 2×2, up to 20Gbps)
- Full bandwidth per port (no shared uplink bottleneck)
- Backward compatible with USB 3.x and USB 2.0
- USB Attached SCSI Protocol (UASP) Rev. 1.0 compliant
- Supports Multiple INs
- Over-current protection and detection on all ports
- USB hot-plug support
- USB port power supplied directly from PCIe slot
- CE, FCC, RoHS compliant
Technical Specifications
Validated performance benchmarks and physical parameters.
- Manufacturer
- Unibrain
- Part Number / SKU
- 1242
- Product Type
- USB 3.2 Quad-Channel PCIe Host Adapter
- PCIe Interface
- PCIe Gen3 x8
- Form Factor
- Standard profile
- USB Ports
- 4 total
- USB-A Ports
- 3 × USB 3.2 Gen 2 (10Gbps each)
- USB-C Port
- 1 × USB 3.2 Gen 2×2 (20Gbps)
- USB Backward Compatibility
- USB 3.x, USB 2.0
- Protocol Support
- USB Attached SCSI Protocol (UASP) Rev. 1.0
- Hot Plug Support
- Yes
- Over-Current Protection
- Yes (per port)
- Power Source
- PCIe slot
- Operating Systems
- Windows 10/11, Windows Server 2016+, Linux 3.6+
- Compliance
- CE, FCC, RoHS
Documentation & Drivers
Package Contents
- 1x Unibrain USB 3.2 Quad-Channel PCIe Host Adapter
- 1x Standard Profile Bracket (pre-mounted)
- 1x User Documentation
Wiring & Connection Diagram
Inspect module pinouts, transmitter/receiver cabling, and power connections.
Target Application Scenarios
Engineered for harsh industrial automation, medical suites, aerospace testing, and command centers where signal integrity is non-negotiable.
Sector Compliance & Use Cases
- High-speed external storage and RAID enclosures
- Machine vision and industrial cameras
- Data acquisition and test systems
- Professional workstations and servers
- USB-C devices requiring Gen2×2 throughput
- Embedded and industrial computing platforms
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Need Custom Lengths or Volume Pricing?
Our engineering team can assist with high-density AV routing, custom termination, OEM integration, or government procurement specs for Unibrain USB 3.2 Quad-Channel PCIe Host Adapter, 3×10Gbps USB-A + 1×20Gbps USB-C (1242).
Unibrain USB 3.2 Quad-Channel PCIe Host Adapter, 3×10Gbps USB-A + 1×20Gbps USB-C (1242)
$269.00