NetXtreme® Single-Port Gigabit Ethernet Controller for Servers

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Fully integrated dual-media 10/100/1000BASE-T and 10/100/1000BASE-X Ethernet Media Access Control, Physical Layer Transceivers and Serializer/Deserializer (SerDes) with Host to BMC Pass Through for high-performance networking and server applications
The BCM5720 is a 13th-generation 10/100/1000BASE-T and 10/100/1000BASE-X Ethernet LAN controller for high-performance server and networking applications. The host interface supports a separate PCI Express function for each LAN interface. The BCM5720 includes I/O Virtualization (IOV) features such as 17 receive and 16 transmit queues, and 17 MSI-X vectors with flexible vector-to-queue association. These IOV features enable the BCM5720 to support the VMWare® NetQueue and Microsoft® VMQ technologies.
  The BCM5720 includes a comprehensive set of hardware features that the system may use to implement IEEE 1588- or IEEE 802.1AS-based time synchronization. These hardware features include a high-precision clock, timestamp registers for receive/transmit packets, and programmable trigger inputs and watchdog outputs.


  • Integrated dual 10/100/1000BASE-T and dual 1000BASE-X/SGMII 1.25 Gbaud SerDes transceivers
  •  Energy Efficient Ethernet™ compliant with IEEE Std 802.3az-2010
  •  IEEE 802.3ap Clause 73 auto-negotiation
  •  Dual 10/100/1000BASE-T full-duplex/half-duplex MACs
  • Virtualization support with VMware NetQueue and Microsoft VMQ
  • Wake-on-LAN support


  • LAN on Motherboards (LOM)
  • Servers
  • Routers
  • Hub/Repeaters
  • Switches

Lifecycle Status


Specification Value
Lifecycle Active
Distrib. Inventory No
Ordering Part # BCM5727B0KFBG
ASIC 5727
Link-Speeds 1Gb
Ports 1
TruFlow™ No
TruManage™ No
Smart Congestion Control No
RoCEv2 No
Multi-Host No
Smart NICs No
FAQs1 i

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