Networking Adapters

AOC-S25G-b2S

The Supermicro AOC-S25G-b2S is one of the most feature rich and versatile 25GbE controllers

Supermicro Products

Networking Adapters

AOC-S25G-b2S
General: Broadcom BCM57414 dual-port 25Gbps controller, Compact size low-profile standard form factor, PCI-E 3.0 x8 (8GT/s, 5GT/s or 2.5GT/s) interface, Dual SFP28 connectors, Typical power consumption: 5.2W | Host Interface: PCI-E v3.0 (8GT/s), MCTP over SMBus, Function Level Reset (FLR) support, Message Signal Interrupt (MSI-X) | Networking Features: Jumbo frames (up to 9600-Byte), 802.3x flow control, Link Aggregation (802.3ad), Virtual LANs – 802.1q VLAN tagging, Configurable Flow Acceleration, IEEE 1588 and Time Sync

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Details that matter

Engineered for professionals who demand the best in performance, security, and design.

Dual SFP28, Low-Profile Form Factor

Dual SFP28 Connectors
Low-Profile, Short Length Standard Form Factor

Broadcom Dual-Port 25Gbps, PCIe 3.0 x8

PCI-E 3.0 x8 interface
Broadcom Dual-Port 25 Gbps PCI Express Gen3 Ethernet Controller

Asset Management & NC-SI

Asset Management Features with thermal sensor
NC-SI for IPMI support

DCB & IEEE 1588 Time Sync

Data Center Bridging (DCB)
IEEE1588 Time Sync

TruFlow & NPAR

TruFlow
NPAR

VXLAN/NVGRE & RoCE

VXLAN and NVGRE
RDMA over Converged Ethernet (RoCE)

Multiqueue, SR-IOV & Jumbo Frames

NetQueue, VMQueue, and Multiqueue
PCI-SIG SR-IOV compliant
Jumbo Frames support up to 9600-Byte

RoHS Compliant 6/6

RoHS compliant 6/6

Technical Specifications

Full specifications for the model

SKU	AOC-S25G-b2S
General	Broadcom BCM57414 dual-port 25Gbps controller Compact size low-profile standard form factor PCI-E 3.0 x8 (8GT/s, 5GT/s or 2.5GT/s) interface Dual SFP28 connectors Typical power consumption: 5.2W
Host Interface	PCI-E v3.0 (8GT/s) MCTP over SMBus Function Level Reset (FLR) support Message Signal Interrupt (MSI-X)
Networking Features	Jumbo frames (up to 9600-Byte) 802.3x flow control Link Aggregation (802.3ad) Virtual LANs – 802.1q VLAN tagging Configurable Flow Acceleration IEEE 1588 and Time Sync
Stateless Offload Features	TCP, UDP, IPv4, IPv6 checksum offload Large Send Offload Receive Segment Coalescing TCP segmentation Offload Large Receive Offload Receive Side Scaling (RSS) Transmit Side Scaling (TSS)
Nic Partitioning Npar	16 Physical Functions QoS per partition Partitioning control via sideband communication Up to 64 MAC/VLAN filter per partition Per partition statistics support Stateless offloads configuration per partition VEB/VEPA support
Virtualization Features	NetQueue, VMQueue, and Multiqueue Support for 128 Virtual Functions VXLAN NVGRE Geneve Edge Virtual Bridging (EVB)
Flow Processing	Exact/Wildcard Match Flow Lookup VLAN insertion/deletion NAT/NAPT Mirroring
Data Center Bridging	Priority-based flow control (PFC; IEEE 802.1Qbb) Enhanced transmission selection (ETS; IEEE802.1Qau) Quantized congestion Notification (QCN; IEEE802.1Qau) Data Center Bridging Capability eXchange (DCBX; IEEE802.1Qaz) 8 traffic classes per port; fully DCB compliant per 802.1Qbb
Manageability	Network Controller Sideband Interface (NC-SI) PXE v2.1 remote boot Asset Management with Thermal Sensors
Power Savings	ACPI compliant power management PCI Express Active State Power Management (ASPM) Ultra low-power mode
Operating Conditions	Storage temperature: -40°C to 70°C (-40°F to 158°F) Storage humidity: 90% non-condensing relative humidity at 35°C
Physical Dimensions	Card PCB dimensions: 14.224cm x 6.89cm (5.6in x 2.71in) (LxW) Height of end brackets: standard – 12cm (4.725in), low-profile – 8cm (3.15in)
Weight	90.5g (0.2lb)

Documentation

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Product Datasheet

AOC-S25G-b2S Datasheet

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AOC-S25G-b2S