How many Ethernet ports are available on the HPE 867327-B21 adapter?

The adapter is defined as a 2-port 621SFP28 Adapter, which means it provides two Ethernet ports on a single card. This dual-port configuration allows a server to connect to two separate network links, enabling redundant paths, segmented traffic, or higher aggregate bandwidth depending on the network design.

What type of network interface does the 867327-B21 adapter use?

: "The product name includes 621SFP28 Adapter and the category notes Dual-port 10/25Gb SFP28, which together indicate that the adapter uses SFP28 interfaces for its Ethernet ports. This makes it suitable for infrastructures that utilize SFP28-based optics or direct attach cables and compatible switch ports.

Is the HPE 867327-B21 suitable as a PCIe Ethernet adapter for servers?

Yes, the category identifies this product as a Network Adapter in the PCIe Ethernet Adapter segment, specifically a Dual-port 10/25Gb SFP28 model. This classification indicates that it is intended for use as a PCIe Ethernet adapter in compatible server platforms that require 10 or 25Gb SFP28 connectivity.

What is the full product identification for procurement purposes?

For procurement, the adapter can be identified by its brand, model, and SKU. It is an HPE Ethernet 10/25Gb 2-port 621SFP28 Adapter with the SKU 867327-B21. Using this complete identification helps ensure that purchasing teams and integrators consistently source the same network adapter across deployments.

867327-B21 - HPE 867327-B21 10/25Gb 2-port 621SFP28 network adapter

Name: HPE 867327-B21 10/25Gb 2-port 621SFP28 network adapter
Brand: HPE
SKU: 867327-B21

867327-B21 - HPE 867327-B21 10/25Gb 2-port 621SFP28 network adapter | US IT Hardware

Product overview

The HPE Ethernet 10/25Gb 2-port 621SFP28 Adapter, SKU 867327-B21, is a dual-port network adapter designed for environments that require 10Gb or 25Gb Ethernet connectivity. As part of the 621SFP28 family, it supports SFP28 interfaces, allowing integration into infrastructures built around SFP28-based networking. The dual-port design enables two Ethernet connections from a single adapter, supporting flexible network layouts and link configurations where both 10Gb and 25Gb operation are required. This adapter fits into deployments that standardize on Ethernet 10/25Gb speeds and SFP28 connections, making it suitable for data center, virtualization, or general server networking roles aligned to these capabilities. With clearly defined 10/25Gb Ethernet support across two ports, this adapter offers a straightforward option for IT teams standardizing on HPE-branded Ethernet solutions within compatible server platforms.

Ethernet adapter with 10 or 25Gb connectivity options
Dual-port configuration for two Ethernet connections
SFP28-based design for compatible network interfaces
HPE-branded adapter for standardized deployments
SKU 867327-B21 for consistent procurement tracking
PCIe Ethernet adapter category for server use

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	867327-B21
Brand	HPE
Condition	New
Model	Ethernet 10/25Gb 2-port 621SFP28 Adapter
Bus Type	PCI Express
Form Factor	Plug-in card
Cabling Type	Ethernet 10GBase-X, Ethernet 25GBase-X
IPv6 Support	IPv6 supported
Product Type	Network adapter
VLAN Support	IEEE 802.1Q VLAN tagging supported
Transceiver Type	Optical fiber SFP28 slots (requires compatible SFP28 optical modules or DAC cables)

Best for

Data center servers
Suitable for data center servers that require Ethernet 10/25Gb connectivity using SFP28 interfaces, leveraging the dual-port 621SFP28 design for flexible network links.
Virtualized hosts
Appropriate for virtualized hosts that need dual 10 or 25Gb Ethernet connections from a single adapter, using the 2-port 621SFP28 configuration to support dense server networking.
SFP28-based networks
Designed for infrastructures built around SFP28 networking, where the Ethernet 10/25Gb 2-port 621SFP28 Adapter aligns with existing cabling and switch ports.
Consolidated network interfaces
Useful in scenarios where consolidating multiple network connections onto one adapter is desired, benefiting from the dual-port 10/25Gb SFP28 capability.
Standardized HPE Ethernet environments
Fits organizations standardizing on HPE Ethernet 10/25Gb adapters, providing a consistent 2-port 621SFP28 option for compatible servers.

Frequently asked questions

What Ethernet speeds does the HPE 867327-B21 adapter support?

Details

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Typical Use Cases	High performance computing, server virtualization, security, server consolidation

Adapter Technology	Converged Ethernet adapter with RDMA support

Data Link Protocols	10 Gigabit Ethernet, 25 Gigabit Ethernet

Jumbo Frame Support	Jumbo Frames supported

Offload Technologies	RDMA over Converged Ethernet (RoCE, RoCE v2), iSCSI Extensions for RDMA (iSER), Receive Side Scaling (RSS), Receive Side Coalescing (RSC)

Bus Power Requirement	Powered from PCI Express 3.0 x8 slot

Connectivity Technology	Wired

Virtualization Features	Single Root I/O Virtualization (SR-IOV) support

Compliant IEEE Standards	IEEE 802.1ad, IEEE 802.1as, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1Qaz, IEEE 802.1Qbb, IEEE 802.3by

Link Aggregation Support	Link aggregation and load balancing supported through teaming at the OS level

Performance

Bidirectional Throughput	100 Gb/s total bidirectional Ethernet bandwidth per adapter
Maximum Aggregate Bandwidth	Up to 100 Gb/s
Bidirectional Transfer Rate Per Port	50 Gb/s bidirectional Ethernet transfer rate per port

Typical Power Consumption	Up to approximately 10 W

Networking Ports & Interfaces

Interface	PCIe
Port Type	SFP28
Connector Type	SFP28
Number of Ports	2 ports
LAN Interface Type	Ethernet
Bus Interface Width	PCIe 3.0 x8
Network Protocol Offloads	RoCE, RoCE v2, iSER, VXLAN, NVGRE
Supported Ethernet Speeds	10 GbE; 25 GbE
Port Interface Description	2 x 10/25Gb Ethernet SFP28 ports
Remote Management Protocols	SNMP
Supported Network Technology	10GBase-X and 25GBase-X over SFP28
Network Virtualization Technologies	Virtual Extensible LAN (VXLAN), Network Virtualization using Generic Routing Encapsulation (NVGRE)

HPE 867327-B21 10/25Gb 2-port 621SFP28 network adapter