How many network ports are available on the HPE P01671-B21 NIC?

This adapter provides two network ports. It is described as a 2-port SFP28 Ethernet adapter, allowing a server to connect to two separate SFP28-based network links from a single card, supporting scenarios such as redundancy or multiple paths.

What type of interface does the HPE P01671-B21 use to connect to the server?

The HPE P01671-B21 uses a PCIe 3.0 interface to connect to the host system. This means it is designed for installation in a compatible PCIe 3.0 slot in a server, aligning with common server expansion standards used in many data center platforms.

For which platform is the HPE P01671-B21 particularly intended?

The HPE P01671-B21 is identified as a Mellanox ConnectX-5 single host controller for Cloudline. This indicates it is particularly intended for HPE Cloudline server environments that require a PCIe 3.0 adapter with dual SFP28 ports delivering 50GbE Ethernet connectivity.

P01671-B21 - HPE P01671-B21 50GbE 2-Port SFP28 PCIe 3.0 NIC

Name: HPE P01671-B21 50GbE 2-Port SFP28 PCIe 3.0 NIC
Brand: HP
SKU: P01671-B21
Price: 618 USD
Availability: InStock

P01671-B21 - HPE P01671-B21 50GbE 2-Port SFP28 PCIe 3.0 NIC | US IT Hardware

Product overview

The HPE NIC 50GbE SFP28 2-Port PCIe 3.0 Mellanox ConnectX-5 Single Host Controller for Cloudline, SKU P01671-B21, is a dual-port Ethernet adapter designed for environments that require 50GbE connectivity. It supports two SFP28 ports, enabling high-speed network links through compatible SFP28 transceivers or cables. The adapter is based on the Mellanox ConnectX-5 controller architecture and uses a PCIe 3.0 host interface, aligning with modern server platforms that provide PCIe 3.0 expansion slots. As a single host controller, it is intended to connect one host system to the network fabric. Positioned within the Network Adapter category as a PCIe 3.0 2-port SFP28 Ethernet Adapter with 50GbE capability, this card is suitable for Cloudline server deployments that require consistent 50GbE SFP28 connectivity and integration with Mellanox ConnectX-5 technology.

50GbE Ethernet adapter for high-speed connectivity
Dual SFP28 ports for two network connections
PCIe 3.0 interface for server integration
Mellanox ConnectX-5 controller technology
Single host controller design for one server
Targeted for HPE Cloudline deployments

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Featuring

Manufacturer part #	P01671-B21
Brand	HP
Condition	Refurbished
Model	P01671-B21
Bus Type	PCI Express 3.0
Bus Width	PCI Express x8 electrical
Card Height	Low profile (can fit low-profile slot with appropriate bracket)
Form Factor	Low profile PCI Express adapter card
Intended Use	Single host controller for HPE Cloudline servers
Product Line	HPE Cloudline
Product Type	Network adapter

Best for

Cloudline servers
Designed as a Mellanox ConnectX-5 single host controller for Cloudline, this adapter fits Cloudline platforms that require 50GbE connectivity over SFP28 using a PCIe 3.0 interface.
50GbE network upgrades
Suitable for environments standardizing on 50GbE Ethernet, providing two 50GbE-capable SFP28 ports through a PCIe 3.0 network adapter form factor.
Dual-port SFP28 connectivity
Useful where two SFP28-based network links are required from a single server, leveraging the dual-port SFP28 configuration on a Mellanox ConnectX-5 controller.
PCIe 3.0 server infrastructures
Fits servers that offer PCIe 3.0 expansion slots and require an Ethernet adapter using this interface while delivering 50GbE SFP28 connectivity.
Single host network controller
Applicable when a single host system needs a dedicated 50GbE dual-port SFP28 adapter based on Mellanox ConnectX-5 technology.

Frequently asked questions

What network speed does the HPE P01671-B21 adapter support?

Details

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RDMA Support	Remote Direct Memory Access (RDMA) over Converged Ethernet (RoCE and RoCEv2)

Boot Protocols	PXE and iSCSI boot from SAN supported

Cooling Method	Passive heatsink on controller

Controller Chip	Mellanox ConnectX-5

Target Platform	HPE Cloudline servers and other compatible HPE server platforms

PXE Boot Support	Preboot eXecution Environment (PXE) remote boot supported

Jumbo Frame Support	Jumbo Ethernet frames up to 9600 bytes

Maximum Message Rate	Up to 200 million messages per second (Mpps) with ConnectX-5 EN

Time Synchronization	Supports IEEE 1588v2 Precision Time Protocol (PTP)

Bracket Type Included	Low profile bracket

Supported Media Types	Direct Attach Copper (DAC) cables and optical SFP28 transceivers

Host Connectivity Type	Single host controller (one PCIe host interface)

Typical Application Class	High-performance computing, cloud, storage, and NFV workloads

Energy Efficiency Features	Supports Energy Efficient Ethernet (EEE) for reduced power at low link utilization

Virtualization Technologies	SR-IOV and Open vSwitch offload support via Mellanox ConnectX-5

Maximum Message Rate with DPDK	Up to 197 Mpps using open source DPDK with ConnectX-5 EN

Transceiver / Cable Type Support	SFP28 optical and Direct Attach Copper (DAC) cables

Offload Capabilities – Transport	TCP, UDP, and checksum offloads, large send offload (LSO) supported by ConnectX-5 EN

Offload Capabilities – Overlay Networks	Hardware offload for VXLAN and NVGRE encapsulation / decapsulation

Performance

Adapter Latency	As low as 750 ns port-to-port latency (ConnectX-5 EN family)
Aggregate Throughput	100 GbE (2 x 50 GbE ports)
PCIe Throughput Capability	Up to 8 lanes PCIe Gen3 with 8.0 GT/s per lane

Maximum Power Consumption	Approximately 5.2 W maximum
Typical Power Consumption	Approximately 4.6 W typical

Networking Ports & Interfaces

Interface	PCIe 3.0
Connector Type	SFP28 small form-factor pluggable
Ethernet Ports	2 x SFP28
Number of Ports	2
Port Form Factor	Two SFP28 cages for 25 GbE / 10 GbE / 1 GbE links
Host Interface Type	PCI Express 3.0 x8
Port Interface Type	SFP28
Network Speed per Port	50 GbE
Supported Ethernet Speed	50 Gigabit Ethernet
Energy Efficient Ethernet	Supports IEEE 802.3az Energy Efficient Ethernet Fast-Wake mode
Host Interface Generation	PCI Express 3.0
NVMe over Fabrics Offload	Hardware acceleration for NVMe-over-Fabrics over Ethernet
Ethernet Standards Support	IEEE 802.3bj, 802.3bm, 802.3by, 802.3ae, 802.3ba, 802.3az for 10/25/40/50/100GbE family
Network Management Features	SR-IOV, QoS and traffic shaping supported in hardware via ConnectX-5 EN
PCIe Slot Power Requirement	Powered from standard PCI Express slot, no auxiliary power connector
Protocol Support – Ethernet	Supports 1/10/25 GbE Ethernet operation
Supported Link Speeds Per Port	1 Gb/s, 10 Gb/s and 25 Gb/s Ethernet on each SFP28 port
Remote Management / Out-of-Band	Adapter configuration and firmware management through standard HPE server management tools
Supported Network Virtualization Overlays	Supports RoCE, VXLAN and NVGRE tunneling offloads via ConnectX-5 EN

HPE P01671-B21 50GbE 2-Port SFP28 PCIe 3.0 NIC