Quad-port USB 3.2 Gen2 adapter with 10Gbps bandwidth per port for high-speed external storage.
Connecting multiple high-speed external drives often bottlenecks standard USB controllers, limiting throughput in data-intensive workflows. The LRSU3A42-4A(3U) PCIe USB adapter resolves this by providing dedicated bandwidth for four simultaneous devices, ensuring stable performance for machine vision and industrial automation tasks.
Powered by the ASM3142 controller, this card delivers up to 10Gb/s transfer speed per port via a PCIe 3.0 x4 interface. This architecture enables aggregate high-bandwidth data flow, eliminating latency when connecting multiple USB 3.2 Gen2 storage devices or peripherals without compromising system resources.
Ideal for servers requiring expanded I/O capacity, this adapter supports hot-swapping and Wake-on-LAN for USB keyboards. Its robust ESD protection (±8KV Class A) and wide OS compatibility, including Windows Server and Linux distributions, make it a reliable choice for enterprise environments demanding consistent connectivity.
Delivers up to 10Gbps transfer speed per port, twice as fast as USB 3.2 Gen1.
Connects four USB 3.2 Gen2 devices simultaneously via a single PCIe x4 slot.
Based on ASM3142 master control solution for stable and efficient data transmission.
Compatible with PCIe x8/x16 slots and backward compatible with USB 2.0/3.0 devices.
Features ±8KV ESD protection and supports hot-swapping for continuous operation.
Complete technical details for integration and deployment planning.
| Model | LRSU3A42-4A(3U) |
|---|---|
| Bus Type | PCI-Express 3.0 x4 |
| I/O Controller | ASM3142 |
| External Port | USB 3.2 Gen2 Type-A |
| Number of ports | 4 |
| Transfer Speed | 10Gb/s |
| Contact discharge | ±8KV (Class A) |
|---|---|
| Test classification | Class A: Normal performance within limits |
| Device Connector | USB Type-A |
|---|---|
| Host Bus | PCI Express 3.0 x4 |
| Humidity | 15%-90% |
|---|---|
| Operating Temperature | 0℃-60℃ (32℉-140℉) |
| Storage Temperature | -20℃-70℃ (-4℉-158℉) |
| Min Power | 3.828W |
| Max Power | 11.88W |
| PCB size | 98*124*1.6 mm |
|---|
| USB Specification | Compliant with Gen2 of Universal Serial Bus USB 3.2 specification |
|---|---|
| Link Protocol | Compliant with USB Link Protocol Revision V1.0 |
| Compatibility | Backward compatible with USB 2.0 functions and devices, USB 3.2 Gen1, USB 2.1, PCIe 3.0, PCIe 2.1, PCIe 2.0 |
|---|---|
| Slot Compatibility | PCIe x4 interface, compatible with slot x8, x16 |
| Multi-device Support | Support multiple USB devices to run simultaneously |
| Wake-on-LAN | Supports Wake-on-LAN for USB keyboard or mouse devices |
| Hot-Swap | Support USB device hot-swappable independent power supply |
| Windows | Windows 7/8/10/11, Windows Server 2008/2012/2016/2019/2022 |
|---|---|
| Linux | RHEL/Centos 7.6/7.9/8.2/8.3, Ubuntu 18.04.5/20.04.1/22.04.3, SUSE 12.5, FreeBSD 12.2/13.2 |
| Domestic OS | Galaxy Unicorn v10 SP1/v10, NeoKylin 7.6, Zhongke Fangded desktop/server OS, Tongxin UOS 20, EmindOS, NeoKirin 0.7.5, Asianux Server v7.0, ZTE New Fulcrum 3.2.2/5.0.5 |
| Virtualization | VMware ESXi 6.7 |
Latest certified drivers for all supported operating systems, ensuring optimal performance and compatibility.
Firmware updates, setup guides and documentation to get started quickly.
Look up product firmware versions, hardware revisions, and OS compatibility by entering your part number or hardware version.
