How many network ports are available on the HPE P21110-B21?

The adapter is specified as a 10/25Gb 2-port SFP28 X2522-25G-Plus Network Adapter. This indicates it offers two SFP28 network ports on a single card, allowing two Ethernet connections that can be configured according to the server and network architecture in which it is installed.

What interface type does the HPE P21110-B21 use for network connectivity?

The HPE P21110-B21 is described as a 2-port SFP28 X2522-25G-Plus Network Adapter. This indicates that each of its two ports uses an SFP28 interface for Ethernet connectivity at 10 or 25 Gigabit speeds, compatible with SFP28-based cables and transceivers used in the surrounding infrastructure.

What kind of product is the HPE P21110-B21 in a server configuration?

The HPE P21110-B21 is categorized as a network adapter and more specifically as a dual-port 10/25GbE SFP28 adapter within the PCIe Ethernet adapter category. It is designed to provide Ethernet connectivity for servers that require 10 or 25 Gigabit links using SFP28 interfaces.

Is the HPE P21110-B21 suitable for environments standardized on SFP28?

Yes, the product name identifies it as a 10/25Gb 2-port SFP28 X2522-25G-Plus Network Adapter. This focus on SFP28 interfaces makes it suitable for environments that have standardized on SFP28-based cabling and switch ports for 10Gb and 25Gb Ethernet connectivity in their server infrastructure.

P21110-B21 - HPE P21110-B21 10/25Gb 2-port SFP28 network adapter

Name: HPE P21110-B21 10/25Gb 2-port SFP28 network adapter
Brand: HPE
SKU: P21110-B21
Price: 3648 USD
Availability: InStock

P21110-B21 - HPE P21110-B21 10/25Gb 2-port SFP28 network adapter | US IT Hardware

Product overview

The HPE P21110-B21 10/25Gb 2-Port SFP28 X2522-25G-Plus Network Adapter is designed as a dual-port Ethernet interface for demanding data environments. This adapter provides 10 and 25 Gigabit capabilities over two SFP28 ports, allowing flexible connectivity options based on network requirements. As a network adapter, it fits into PCIe-based server architectures where high-bandwidth Ethernet connections are needed. The dual-port configuration supports link configuration options defined by the host environment and networking design. With its SFP28 interface focus, it is suitable for infrastructures that rely on SFP28-based cabling and transceivers for Ethernet connectivity. The adapter’s 10/25Gb capability enables integration into networks that operate at either performance level. This model is categorized as a PCIe Ethernet adapter and positioned for use in systems where reliable two-port SFP28 connectivity and flexible 10 or 25 Gigabit operation are required for core server networking.

10/25Gb Ethernet speeds for flexible deployment
Dual-port SFP28 design for two Ethernet connections
X2522-25G-Plus SFP28 network adapter platform
HPE branded network adapter for standardized fleets
SKU P21110-B21 simplifies asset tracking
Designed as a PCIe Ethernet network adapter

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Purchase orders accepted from qualified institutions.
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 #	P21110-B21
Brand	HPE
Condition	Refurbished
Model	P21110-B21
Model Name	10/25Gb 2-Port SFP28 X2522-25G-Plus
Device Type	Network adapter
Form Factor	Plug-in card
Bracket Type	Low-profile bracket included
Product Line	HPE Ethernet Adapters
Product Type	Network adapter
Product Series	HPE Gen10 Plus Ethernet Adapters

Best for

Data center networking
Suitable for data center environments that require 10/25Gb Ethernet connectivity through a 2-port SFP28 network adapter, aligning with infrastructures built around SFP28-based switching and cabling.
Server network upgrades
Useful for upgrading servers that need dual-port 10/25Gb Ethernet connectivity via SFP28 interfaces, leveraging the X2522-25G-Plus network adapter design.
SFP28-based LANs
Intended for local area networks standardized on SFP28 interfaces, where a 10/25Gb 2-port SFP28 adapter provides consistent Ethernet connectivity at these speeds.
Multi-port Ethernet consolidation
Applicable where two Ethernet connections are required from a single adapter, using the dual-port 10/25Gb SFP28 configuration to consolidate network links in a server.
Flexible speed Ethernet environments
Fits deployments that may operate at either 10Gb or 25Gb Ethernet speeds, supported by the 10/25Gb capability of the SFP28 X2522-25G-Plus network adapter.

Frequently asked questions

What Ethernet speeds does the HPE P21110-B21 adapter support?

Details

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Target Application	Hybrid cloud and virtualized data center networking

Virtual Networking	Supports network virtualization technologies in HPE server environments

Data Link Protocols	10 Gigabit Ethernet, 25 Gigabit Ethernet

Supported Protocols	TCP/IP over Ethernet with support for IPv4 and IPv6

Host Server Platform	Designed for HPE ProLiant Gen10 Plus servers

Workload Acceleration	Optimized for low-latency and high-throughput workloads

Connectivity Technology	Wired

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

Hardware Offload Features	TCP/IP stateless offloads including TCP, UDP, IPv4, IPv6 checksum offload

Data Transfer Rate	25 Gbps
Media Type Supported	Optical fiber
Maximum Aggregate Throughput	50 Gbps full duplex (25 Gbps per port)

Typical Power Consumption	Approximately 10 W (typical adapter power draw)

Networking Ports & Interfaces

Ports	2 x 10/25Gb Ethernet SFP28
Port Type	SFP28 ports for 10GbE or 25GbE connections
Connector Type	SFP28
Media Interface	Supports SFP28 optical transceivers for fiber connectivity
Network Standards	IEEE 802.3 10GbE and 25GbE Ethernet
Network Technology	10GBase-X and 25GBase-X
Interface (Bus Type)	PCI Express
Server Interface Standard	PCI Express 3.0 for server connectivity
Network Performance Optimization	Support for Receive Side Scaling (RSS) and transmit/receive queue optimization

HPE P21110-B21 10/25Gb 2-port SFP28 network adapter