HPE

HPE 845970-B21 100GbE QSFP28 to SFP28 adapter

Name: HPE 845970-B21 100GbE QSFP28 to SFP28 adapter
Brand: HPE
SKU: 845970-B21
Price: 392 USD
Availability: InStock

MPN: 845970-B21·By: HPE

Part #:845970-B21NewIn stock

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HPE 845970-B21 100GbE QSFP28 to SFP28 adapter-

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Product overview

The HPE 845970-B21 is a QSFP28 to SFP28 adapter module designed for environments using 100GbE QSFP28 interfaces that need to support SFP28 connectivity. As part of the 100GbE QSFP28 to 10 or 25GbE SFP28 adapter module category, it enables the use of SFP28 form factor connections in ports designed for QSFP28. This supports flexible deployment strategies where network designs require different Ethernet speeds within the same infrastructure. By matching QSFP28 interfaces with SFP28 modules, this adapter helps standardize cabling approaches and simplify upgrades from lower Ethernet speeds to 100GbE-capable platforms. The adapter is positioned as a network adapter component, allowing IT teams to align transceiver choices with port types already present in their switching or server infrastructure. This makes it suitable for structured network environments where 100GbE backbone connectivity coexists with SFP28-based access or aggregation links.

HPE QSFP28 to SFP28 adapter module
Designed for 100GbE QSFP28 environments
Supports 10 or 25GbE SFP28 connections
Network adapter category component
HPE model identifier 845970-B21
Aligns QSFP28 ports with SFP28 connectivity

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Featuring

Manufacturer part #	845970-B21
Brand	HPE
Condition	New
Model	HPE QSFP28 to SFP28 Adapter
Part Class	Transceiver adapter; converter module
Application	For HPE Virtual Connect SE 100Gb F32 Module for HPE Synergy
Form Factor	QSFP28 adapter
Adapter Type	QSFP28 to SFP28 adapter
Intended Use	Use SFP28 transceivers in QSFP28 ports for network upgrades and mixed environments
Product Line	HPE
Product Type	Network adapter
Input Form Factor	QSFP28
Output Form Factor	SFP28
Aggregated Line Rate	100 Gbps on QSFP28 side
Supported Data Rate Range	10.31 Gbps to 25.78 Gbps
Compatible Platform Examples	HPE Synergy with HPE Virtual Connect SE 100Gb F32 Module

Networking Ports & Interfaces

Interface Type	QSFP28 host interface; SFP28 module interface
Transceiver Ports	Supports SFP28 transceiver modules in QSFP28 cage
Left Connector Type	QSFP28
Right Connector Type	SFP28
Left Connector Quantity	1 port
Right Connector Quantity	1 port
Supported Ethernet Speeds	10GbE; 25GbE; 100GbE

Compatible systems

Primarily used with HPE Synergy Virtual Connect SE 100Gb F32 Module to connect SFP28 in QSFP28 ports.

HPE HPE Synergy
Model: HPE Virtual Connect SE 100Gb F32 Module
Form factor: Module
HPE documentation lists QSFP28 to SFP28 adapter 845970-B21 for this module.

Best for

Mixed 100GbE and SFP28 environments
Use in networks where 100GbE QSFP28 ports need to interoperate with SFP28 connections, leveraging the QSFP28 to SFP28 adapter module form factor.
Network upgrades
Suitable for staged upgrades from 10 or 25GbE SFP28 access links to 100GbE-capable QSFP28 infrastructure while maintaining compatibility at the port level.
Port flexibility in data centers
Helps data center operators use QSFP28 ports for SFP28 connectivity, aligning with the 100GbE QSFP28 to 10 or 25GbE SFP28 adapter module category.
Standardized adapter deployments
Supports standardization on QSFP28 platforms while retaining the ability to connect SFP28-based links through a single adapter type.
Consolidated network interfaces
Applicable where consolidating multiple SFP28 link requirements onto a 100GbE QSFP28 based platform is part of the network design.

Frequently asked questions

What type of adapter is the HPE 845970-B21?

The HPE 845970-B21 is defined as a QSFP28 to SFP28 adapter module. It sits in the network adapter category and is designed to let systems with QSFP28 interfaces interoperate with SFP28 connectivity, reflecting its classification as a 100GbE QSFP28 to 10 or 25GbE SFP28 adapter module.

Which network speed classes is this adapter intended to support?

According to its category, the HPE 845970-B21 is positioned as a 100GbE QSFP28 to 10 or 25GbE SFP28 adapter module. This means it is intended for use in 100GbE QSFP28 environments that need to connect to SFP28 links operating at 10GbE or 25GbE, within compatible host platforms.

How should this adapter be categorized in procurement systems?

This product should be categorized as a network adapter, specifically a QSFP28 to SFP28 adapter within the 100GbE QSFP28 to 10 or 25GbE SFP28 adapter module class. Procurers can track it using the SKU 845970-B21 and the model description HPE QSFP28 to SFP28 Adapter for accurate asset management.

What vendor information is important when specifying this adapter?

When specifying this adapter, the key vendor details are the brand HPE, the model name HPE QSFP28 to SFP28 Adapter, and the SKU 845970-B21. These identifiers ensure the correct adapter is selected and recorded in bills of materials and configuration documentation.

Is the HPE 845970-B21 suitable for environments using QSFP28 and SFP28 together?

Yes, the HPE 845970-B21 is categorized as a QSFP28 to SFP28 adapter for 100GbE QSFP28 to 10 or 25GbE SFP28 scenarios. This classification indicates it is intended for deployments where QSFP28-based infrastructure needs to integrate with SFP28 connections in a structured network design.

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Manufacturer part #

845970-B21

Brand

HPE

Condition

New

Model

HPE QSFP28 to SFP28 Adapter

Part Class

Transceiver adapter; converter module

Application

For HPE Virtual Connect SE 100Gb F32 Module for HPE Synergy

Form Factor

QSFP28 adapter

Adapter Type

QSFP28 to SFP28 adapter

Intended Use

Use SFP28 transceivers in QSFP28 ports for network upgrades and mixed environments

Product Line

HPE

Product Type

Network adapter

Input Form Factor

QSFP28

Output Form Factor

SFP28

Aggregated Line Rate

100 Gbps on QSFP28 side

Supported Data Rate Range

10.31 Gbps to 25.78 Gbps

Compatible Platform Examples

HPE Synergy with HPE Virtual Connect SE 100Gb F32 Module

Interface Type

QSFP28 host interface; SFP28 module interface

Transceiver Ports

Supports SFP28 transceiver modules in QSFP28 cage

Left Connector Type

QSFP28

Right Connector Type

SFP28

Left Connector Quantity

1 port

Right Connector Quantity

1 port

Supported Ethernet Speeds

10GbE; 25GbE; 100GbE