High-performance 40G Ethernet server adapter based on Intel XL710 controller.
When network congestion causes application timeouts in AI training clusters or high-frequency trading platforms, every microsecond of latency matters. The LREC9901BF-QSFP+ addresses this by delivering consistent 40Gbps throughput, ensuring that data-intensive workloads never stall due to I/O bottlenecks in demanding enterprise environments.
Built on the Intel XL710 controller, this adapter features a PCIe 3.0 x8 interface compatible with x16 slots, providing robust bandwidth for heavy traffic. With hardware acceleration for TCP/UDP/IP checksum offloading and support for DPDK, it significantly reduces CPU overhead, enabling servers to handle more virtual machines and containerized applications efficiently without performance degradation.
Ideal for data centers, cloud computing infrastructure, and high-end storage networks, the LREC9901BF-QSFP+ leverages Intel’s proven silicon for reliability. Its support for SR-IOV and network virtualization protocols like VXLAN makes it a versatile choice for modern software-defined networks, offering enterprises a scalable and efficient connectivity solution.
Based on Intel XL710 High-Performance Ethernet Controller with hardware acceleration for TCP/UDP/IP checksum offloading.
Single-port 40G QSFP+ interface supporting 40000Base-SR, LR, and Cu standards for high-speed data transmission.
High-bandwidth PCIe v3.0 x8 lanes (8.0GT/s) backward compatible with PCIe v2.0 and v2.1 for flexible server integration.
Supports SR-IOV, VMDq, and network virtualization protocols including VXLAN, NVGRE, and Geneve for cloud environments.
DPDK support and hardware offloading reduce host CPU usage, improving efficiency in high-performance network applications.
Includes both full-height and half-height brackets to fit various server chassis configurations.
High-quality optical modules and cables for optimal compatibility with your network adapter.
Complete technical details for integration and deployment planning.
| Controller Chip | Intel XL710 |
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| Bus Type | PCI Express v3.0 (8.0GT/s) x8, compatible with x16 |
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| Backward Compatibility | PCI Express v2.0, PCI Express v2.1 |
| Connector | 1*QSFP+ |
|---|---|
| Data Rate Supported per port | 40000MbE |
| Fiber Type | 40000Base-SR, 40000Base-LR, 40000Base-Cu |
| Power Consumption | 4.6W |
|---|---|
| Baffle Height | Full height & half height |
| Size (mm) | 165*120*21 |
| Weight (g) | 170 |
| LED Indicators | Yellow Link + Blue Link + Green Blink |
| IEEE Standards | IEEE 802.3ba, IEEE 802.3x, IEEE 802.3BD, IEEE 802.1AS, IEEE 802.1Q, IEEE 802.3AD, IEEE 802.3az, IEEE 802.3ap |
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| Supported Features | PXE, iSCSI, FCoE, DPDK, VMDq, Jumbo Frames, RSS, PCI-SIG SR-IOV, Network Virtualization (VXLAN, NVGRE, Geneve, NSH, VEPA, VEB), UEFI, VLAN tag insertion |
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| Unsupported Features | WoL |
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| Windows | Windows 10, Windows Server 2008R2/2012R2/2016R2/2019/2019R2 |
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| Linux | Stable Kernel version 3.x/4.x or later; CentOS/RHEL 6.5/7.x or later; Ubuntu 14.x/15.x/16.x or later |
| VMware | ESX/ESXi 4.x/5.x/6.x or later |
| Operating Temperature | 0 ℃ to 55 ℃ (-13 ℉ to 158 ℉) |
|---|---|
| Storage Temperature | -40 ℃ to 70 ℃ (-40 ℉ to 158 ℉) |
| Storage Humidity | Maximum: 90% non-condensing relative humidity at 35 ℃ |
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