What Ethernet speeds does the HPE 817749-B21 adapter support?

The HPE 817749-B21 is specified as an Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter, which means it supports both 10 Gigabit and 25 Gigabit Ethernet operation. This allows it to be deployed in environments that currently run at 10Gb while also supporting 25Gb where the network and server infrastructure can operate at higher speeds.

How many network ports are available on the HPE 640FLR-SFP28 adapter?

The adapter is described as a 2-port 640FLR-SFP28 model, so it provides two network interfaces on a single card. These dual ports can be used for separate networks, redundant links, or aggregated bandwidth, depending on the server and network configuration requirements within the enterprise environment.

What type of interface does the HPE 817749-B21 adapter use for connectivity?

The model name identifies this as a 640FLR-SFP28 Adapter, indicating that it uses SFP28 based interfaces. SFP28 is designed to support 10 and 25 Gigabit Ethernet connectivity through appropriate transceivers or direct attach cabling, providing flexibility for different media options in enterprise and data center deployments.

Is the HPE 817749-B21 suitable for enterprise deployments?

The product level is defined as Enterprise and it is named HPE Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter, which aligns with typical enterprise server and data center requirements. Its dual-port design and 10 or 25Gb speed support make it appropriate for business critical workloads that need reliable, higher bandwidth Ethernet connectivity.

Can this adapter be used for standardized HPE server networking?

Yes, the adapter is branded HPE and identified as the Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter. Using a consistent HPE enterprise adapter model like this across servers helps standardize network connectivity, simplifies management, and streamlines procurement processes in environments built around HPE server infrastructure.

817749-B21 - HPE 817749-B21 10/25Gb 2-port 640FLR-SFP28 adapter

Name: HPE 817749-B21 10/25Gb 2-port 640FLR-SFP28 adapter
Brand: HPE
SKU: 817749-B21
Price: 45 USD
Availability: InStock

817749-B21 - HPE 817749-B21 10/25Gb 2-port 640FLR-SFP28 adapter | US IT Hardware

Product overview

The HPE Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter 817749-B21 is an enterprise network adapter designed for environments that require dual-port connectivity at 10 or 25 Gigabit Ethernet speeds. As part of HPE’s Ethernet 10/25Gb adapter family, it supports two network interfaces, allowing flexible deployment in data center and server infrastructures. The 640FLR-SFP28 designation indicates support for SFP28 interfaces and flexible LOM integration in compatible systems. With its dual-port design, this adapter enables higher aggregate bandwidth and redundancy options for business critical workloads. It is well suited for enterprise applications that need efficient, high speed Ethernet connectivity within a standardized HPE infrastructure. The adapter’s capabilities align with modern server networking requirements, providing a compact and integrated approach to 10 and 25 Gigabit Ethernet networking in enterprise deployments.

HPE enterprise Ethernet network adapter
Supports 10 and 25 Gigabit Ethernet speeds
Dual port design for two network interfaces
640FLR-SFP28 model with SFP28 interfaces
Designed for enterprise level deployments
Suitable for standardizing HPE server networking

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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 #	817749-B21
Brand	HPE
Condition	Refurbished
Model	Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter
Form Factor	FlexibleLOM
IPv6 Support	Yes
Product Line	HPE Ethernet 10/25Gb Adapters
Product Type	Network adapter
VLAN Support	Yes
Status Indicators	Link; Activity
Compliant Standards	FCC Class A; CISPR 22 Class A; ICES-003; EN55024; WHQL; EN 60950-1; RoHS; ACA; cTUVus; BSMI Class A; VCCI Class A; EN 55022 Class A

Compatible systems

HPE 817749-B21 640FLR-SFP28 adapter is supported on select HPE Apollo and ProLiant DL Gen9 and Gen10 servers and major enterprise OSs.

HPE ProLiant DL
Model: DL360 Gen10
Form factor: Rack
Generation: Gen10
Listed under Designed For for HPE 817749-B21 Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter
HPE ProLiant DL
Model: DL360 Gen9
Form factor: Rack
Generation: Gen9
Included in Designed For list for HPE 817749-B21 640FLR-SFP28 Adapter
HPE Apollo
Model: 4200 Gen9
Form factor: Rack
Generation: Gen9
Listed as designed for with HPE 817749-B21 adapter
HPE Apollo
Model: 4520 Gen9
Form factor: Rack
Generation: Gen9
Included in Designed For systems for 817749-B21
HPE Apollo
Model: 4530 Gen9
Form factor: Rack
Generation: Gen9
Included in Designed For systems for 817749-B21

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Full Duplex Support	Full duplex mode

Jumbo Frame Support	Jumbo frames up to 9.2 KB

Designed For Systems	HPE Apollo 4200 Gen9; 4520 Gen9; 4530 Gen9; HPE ProLiant DL120 Gen9; DL160 Gen9; DL180 Gen9; DL360 Gen9; DL360 Gen10 and variants

TCP IP Offload Engine	TCP/IP offloading supported

Connectivity Technology	Wired

Maximum Jumbo Frame Size	9.2 KB

Quality of Service Support	Quality of Service (QoS) supported

Supported Operating Systems	Microsoft Windows Server 2012; Windows Server 2012 R2; VMware ESXi 5.5; VMware ESXi 6.0; Red Hat Enterprise Linux 6.6; 6.7; 7; 7.1; 7.2; SuSE Linux Enterprise Server 11; 12; Ubuntu 14.04; Oracle Solaris 11.1; Citrix XenServer 6.5

Data Link Protocols Supported	10 Gigabit Ethernet; 25 Gigabit Ethernet

Supported Transceiver and Cable Types	Supports various DAC cables and optical transceivers including Aruba 10Gb SFP+ LC SR 300m MMF Transceiver J9150D and HPE FlexNetwork X240 10G SFP+ to SFP+ DAC cables JD095C, JD096C, JD097C, J9283D, J9285D

Bandwidth per Port	50 Gbps
Data Transfer Rate	25 Gbps
Bidirectional Bandwidth	100 Gbps
Bidirectional Throughput	100 Gbps
Total Aggregate Bandwidth	50 Gbps

Networking Ports & Interfaces

Ports	2 x 25Gb Ethernet SFP28 ports
Interface	PCI Express 3.0 x8
Port Type	SFP28
Ethernet Ports	2 ports supporting 10GbE or 25GbE
Host Interface	PCI Express 3.0 x8
Number of Ports	2 ports
Management Interface	SNMP for remote management
Ethernet Interface Type	10 Gigabit Ethernet; 25 Gigabit Ethernet
Maximum Data Rate per Port	25 Gbps per port
Remote Management Protocols	SNMP

HPE 817749-B21 10/25Gb 2-port 640FLR-SFP28 adapter