100g nic pcie | Dual-port QSFP56 | PCIE4.0 x16 |

LRES1250PF-2QSFP56

PCIe x16 Dual-port100G Ethernet Network Adapter

PCI Express 4.0 x16

Dual-port QSFP56 interfaces

HHHL Form Factor

Support 25/50/100/200Gbps

Support RoCEv2

Support Geneve VXLAN NVGRE

LRES1250PF-2QSFP56

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Overview Specifications

LRES1250PF-2QSFP56 is a PCIe x16 Dual-port100G Ethernet Network Adapter independently developed by Linkreal Co., Ltd. based on the Broadcom BCM57508 chip. It is equipped with two QSFP56 connectors, supports high-speed fiber transmission, and the physical board size follows the HHHL (Half-Height Half-Length) PCIe add-in card form factor.

LRES1250PF-2QSFP56r can be configured as a 2x100G adapter with Port0 active as 200G and Port1 disabled. This can be configured at run time through firmware.

The LRES1250PF-2QSFP56 features on-chip acceleration for Geneve, VXLAN, and NVGRE tunneling protocols, reducing CPU utilization by up to 90% compared to software-only implementations. It also supports advanced networking technologies such as RoCE, SDN, and NFV, enabling more efficient network management and providing greater flexibility for deploying modern service provider and cloud-scale solutions.

LRES1250PF-2QSFP56 is designed to deliver feature-rich networking solutions in servers for enterprise and cloud-scale networking and storage applications, including high-performance computing, telco, machine learning, storage disaggregation, and data analytics.

Product Specifications
Model	LRES1250PF-2QSFP56
Controller	Broadcom BCM57508
Adapter Type	PCIe NIC
Form Factor	HHHL
Host Connector	PCle4.0 x16
Connectors	QSFP56
Port	Dual
Link Speed	25/50/100/200Gbps
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 IEEE1588 v1&v2
Functional Support
PXE/UEFI	Yes
RoCEv2	Yes
SR-IOV	Yes
1588 PTP	Yes
Jumbo Frames	9.4KB
Power
DAC		17.1W（Max）
Optical Transceiver		22.0W (Max)

LED Indicators
LED Type	Color/Behavior	Note
Link	Off	No link
	Amber	Link at lower speed
	Green	Link at 100Gbps
Activity	Off	No Activity
	Green(blink)	Linkup(traffic flowing)
Supported Physical Layer Interfaces
200GBASE-CR4、200GBASE-SR4/LR4、100GBASE-CR4
100GBASE-SR4/LR4、50GBASE-CR、50GBASE-SR/LR
25GBASE-CR、25GBASE-SR/LR
Supported Systems
OS	·Windows ·Deepin ·RHEL/CentOS ·Rocky ·SUSE ·ZTE New Fulcrum ·FusionFounder ·Zhongke Fangde ·Ubuntu ·Fusion OS ·OpenKylin	·UOS ·Debian ·Fangde OS ·OpenEuler ·VMware ESXI ·iKuai Router ·ATL Server ·REDOS ·Alce
Technical Specifications
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
Certification	FCC, CE, RoHS

Physical Properties
Adapter Size	167.7*68.9mm
Package Size	22214728mm
Packing List
Internet Network Adapter	*1
Product Warranty Card	*1
Packaging	Carton + Blister Box