PCI Express x4 Dual Port Copper Gigabit Ethernet Lan Card For Server Adapter (Broadcom 5709C Based)

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Interface Type:
PCI Express
Brand Name:
Model Number:
Place of Origin:
Guangdong, China (Mainland)
main chip:
BCM 5709C
product series:
ethernet lan card
pci express x4
3 years
IEEE Standard / Network topology:
1000Base-T, 100Base-TX , 10Base-T
support Boot ROM

Packaging & Delivery

Selling Units:
Single item
Single package size: 
25X16X3 cm
Single gross weight:
0.238 kg
Package Type:
blister package and brown box packing ethernet lan card
Picture Example:
Lead Time :
Quantity(Piece) 1 - 50 >50
Est. Time(days) 3 To be negotiated


PCI Express x4 Dual Port Copper Gigabit Ethernet Lan Card For Server Adapter (Broadcom 5709C Based)


LR-LINK LREC9712PT PCI Express TOE server adapters are network interface cards that contain multiple / single independent Gigabit Ethernet port/s. The Silicom PCI Express TOE server adapters provide a fully integrated up to Layer 5 solution along with a complete Gigabit Ethernet port/s.

LR-LINK LREC9712PT Gigabit Ethernet PCI Express TOE server adapters are based on Broadcom TOE controller features an industry first support for single chip TOE Gigabit Ethernet NIC with TCP / IP offload Engine, RDMA NIC (RNIC)*, iSCSI 1.0* /iSER HBA*.

TCP Offload Engine

The LR-LINK LREC9712PT TOE server adapters include dedicated hardware and processors to process the frame that traverse it functionality. On the transmit path, the TOE controller Copied the data directly from the highest hierarchy of buffers available, execute the TCP/IP, adds lower level headers. 

Convergence NIC

The LR-LINK LREC9712PT Gigabit Ethernet PCI Express TOE server adapters enable convergence of all networked communication possible in a server, such as data network (LAN), storage network, or file ( CIFS / NFS), clustering for high performance commuting or inter process communication by support of RDMA* over TCP.

The LR-LINK LREC9712PT TOE server adapter is a convergence networking interface card and allows one network connection to provide access to all information types.

LR-LINK LREC9712PT TOE Gigabit Ethernet server adapters can simultaneously support the following functions:

TOE Chimney- enabled network accelerator

RDMA Network Interface Controller ( RNIC)*

iSCSI or iSER Host Bus Adapter ( HBA) *


Key Features

TCP offload Engine

Full fast path TCP offload for up to 1024 connection

Zero Copy capable hardware

iSCSI Controller*

iSCSI initiator

iSER ( iSCSI over RDMA)

RDMA Controller ( RNIC)*

RDMA over TCP (iWARP) – RDMAC 1.0 compliant

Hardware-based data placement in application buffers without CPU intervention ( user and kernel modes)

Performance Features

Full fast path TCP offload Extremely Low CPU utilization for TCP/IP applications – Host CPU is free to run application code.

Accelerated IP based storage

Lower CPU utilization for file level storage protocol such as CIFS and NFS

iSCSI functionality with low CPU utilization

RDMA support for data placement in application buffers reduces CPU utilization and lower data transits latencies.*

Receive Side Scaling (RSS)

Message Signal Interrupts ( MSI)

Host Interface standard support PCI Express 1.1.

High performance, reliability, and low power use in Broadcom TOE MAC + PHY / SERDES chip controller

Server class reliability, availability and performance features

Link Aggregation and Load Balancing:

Switch dependent: 802.3ad (LACP), Generic Trunking ( GEC / FEC)

Ultra deep packet buffer per channel lowers CPU utilization.

Virtual LANs –802.1q VLAN tagging.

Jumbo Frame (9KB).

802.x flow control.

Boot ROM embedded or optional can be used for Boot ROM applications.

PCI Power Management Interface (V1.1)

Technical Specifications 

Copper Gigabit Ethernet Technical Specifications - (1000Base-T) Adapters:

IEEE Standard / Network topology:

Gigabit Ethernet, 1000Base-T Fast Ethernet, 100Base-TX Ethernet, 10Base-T

Full duplex / Simplex:

Support both Simplex & Full duplex operation in all operating speeds

Auto negotiation:

Auto-negotiation between Full duplex and simplex operations and between 10Mb/s 100Mb/s speeds and duplex 1000Mb/s

Data Transfer Rate:

1000 Mbit/s, 100 Mbit/s and 10 Mbits/sec in simplex mode per port.

2000Mbit/s 200 and 20 Mbit/s in full duplex mode per port.

Cables and Operating distance:

10Base-T Category 3, 4, or 5 maximum 100m

100Base-Tx Category 5 maximum 100m

1000Base-T Category 5E maximum 100m

Operating Systems Support

Operating system support:

DOSWindows XP

Windows Server 2003 32-bit(64-bit)

Windows 7 32-bit(64-bit)

Windows 8.1 32-bit(64-bit)

Windows Server 2008 32-bit(64-bit)

Windows Server 2008 R2 32-bit(64-bit)  

Windows Server 2012

Windows Server 2012 R2



VMware ESX/ESXi 4.1/5.0/5.1/5.5

UnixWare / OpenUnix 8

Sun Solaris x86

OS Independent

General Technical Specifications 

Interface Standard:

PCI Express Base Specification Revision 1.0a

Board Size:

PCI Low profile Short Add in card 167.64mm X 68.91 mm 6.6” X 2.713”

PCI Express Card Type:

X4 Lane

PCI Express Voltage:

+3.3V ± 9% + 12 ± 8%

PCI Connector:

X4 Lane

Controller: :

Broadcom BCM5709C


Metal Bracket

Operating Temperature:

0°C – 50°C (32°F - 122°F)


-20°C–65°C (-4°F–149°F)



LEDs per port

Link Activity: Turns on any link speed, blinks on activity (green). Speed (Bi-color) Led:

100Mbits/s: Turns on Yellow

1000Mbit/s: Turns on Green

LEDs location:

LEDs are integrated on RJ-45 connector


Shielded RJ-45

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