AI Server Adapters

LRES1250PF-2QSFP56
PCIe 4.0 x16 Dual-Port 100G QSFP56 Network Adapter (Broadcom BCM57508 Based)

High-performance PCIe 4.0 x16 dual-port 100G Ethernet NIC based on Broadcom BCM57508, supporting RoCEv2 and PTP.

High-Speed Connectivity Low Latency & Offload Advanced Networking Protocols Precision Timing
PDF
LRES1250PF-2QSFP56
PDF 565.31KB
Download
Inquiry
Suggestion
LRES1250PF-2QSFP56
LRES1250PF-2QSFP56 view 1
LRES1250PF-2QSFP56 view 2
LRES1250PF-2QSFP56 view 3
LRES1250PF-2QSFP56 view 4
Overview Specifications Drivers Version Query

Product Overview

Modern data centers and AI training clusters face severe bottlenecks when network latency disrupts high-frequency trading or real-time analytics workflows. Traditional adapters often struggle with the overhead of complex tunneling protocols, leading to increased CPU load and reduced application performance.

The LRES1250PF-2QSFP56 addresses these challenges with its PCIe 4.0 x16 interface and dual QSFP56 ports, delivering up to 200Gbps throughput per port. On-chip acceleration for Geneve, VXLAN, and NVGRE reduces CPU utilization by up to 90%, enabling servers to dedicate more resources to core computing tasks rather than network processing.

Designed for enterprise cloud-scale networking, storage disaggregation, and machine learning applications, this adapter leverages the Broadcom BCM57508 chipset for robust reliability. It supports advanced features like RoCEv2 and IEEE 1588 PTP, ensuring precise timing and low-latency communication essential for modern high-performance computing environments.

High-Speed Connectivity

Dual-port QSFP56 interfaces support 25/50/100/200Gbps speeds for maximum bandwidth.

Low Latency & Offload

On-chip acceleration for Geneve, VXLAN, and NVGRE reduces CPU utilization by up to 90%.

Advanced Networking Protocols

Supports RoCEv2, SDN, and NFV for efficient network management in cloud environments.

Precision Timing

Integrated IEEE 1588 PTP v1 & v2 support ensures synchronized operations for telco and HPC.

Enterprise Reliability

Based on Broadcom BCM57508 chipset, designed for stability in data center and AI workloads.

Technical Specifications

Complete technical details for integration and deployment planning.

General

LRES1250PF-2QSFP56 - General Specifications
Model LRES1250PF-2QSFP56
Controller Broadcom BCM57508
Adapter Type PCIe NIC
Form Factor HHHL (Half-Height Half-Length)
Host Connector PCIe 4.0 x16

Ports & Speed

LRES1250PF-2QSFP56 - Ports & Speed Specifications
Connectors Dual-port QSFP56
Link Speed 25/50/100/200Gbps
Physical Layer Interfaces 200GBASE-CR4, 200GBASE-SR4/LR4, 100GBASE-CR4, 100GBASE-SR4/LR4, 50GBASE-CR, 50GBASE-SR/LR, 25GBASE-CR, 25GBASE-SR/LR

Protocols

LRES1250PF-2QSFP56 - Protocols Specifications
Protocol Support IEEE 802.3x Full Duplex and flow control, IEEE 802.3az Energy Efficient Ethernet (EEE), IEEE 802.3AS, IEEE 802.1Q VLAN, IEEE 802.1Qaz, IEEE 802.1Qbb, IEEE 802.1x, IEEE 802.1bd, IEEE 1588 v1&v2

Features

LRES1250PF-2QSFP56 - Features Specifications
Feature Support (Yes) PXE, UEFI, RoCEv2, SR-IOV, 1588 PTP, Jumbo Frames 9.4KB, Geneve/VXLAN/NVGRE Tunneling Acceleration

Power & Environment

LRES1250PF-2QSFP56 - Power & Environment Specifications
Power Consumption (DAC) 17.1W (Max)
Power Consumption (Optical Transceiver) 22.0W (Max)
Operating Temperature -10°C to 55°C
Storage Temperature -40°C to 70°C
Storage Humidity Maximum: 90% non-condensing relative humidity at 35 °C

Physical Properties

LRES1250PF-2QSFP56 - Physical Properties Specifications
Adapter Size 167.7*68.9mm
Package Size 222*147*28mm
Certification FCC, CE, RoHS

Driver Downloads

Latest certified drivers for all supported operating systems, ensuring optimal performance and compatibility.

Windows 1 driver
Windows_Drivers-235.1.122.0
v235.1.122.0 2026-05-21
Linux 1 driver
bcm_235.1.160.0b.tar.gz
v235.1.160.0b 2026-05-21

Version Identification & Query

Look up product firmware versions, hardware revisions, and OS compatibility by entering your part number or hardware version.

Service
联系我们