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HPE 716591-B21 561T dual port Ethernet Adapter View larger
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HPE 716591-B21 Ethernet 10 Gb 2‑Port 561T Network Adapter

716591-B21

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Dual‑port 10 GbE RJ‑45 adapter using...

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$49.00

Detailed Specifications

HPE 716591-B21 

Ethernet 10 Gb 2‑Port 561T Network Adapter

The HPE 716591‑B21 (561T) is a dual-port 10 GbE Network Adapter engineered for HPE ProLiant Gen8 and Gen9 rack, tower, and scalable servers. Featuring Intel X540 controller technology, it provides full line-rate 10 Gbps performance oneach RJ‑45 port over Cat 6A cabling (up to 100 m). Ideal for virtualization, high-speed backups, and server consolidation, this adapter delivers advanced networking features—including VLAN tagging, jumbo frames, and PXE/WOL—while minimizing CPU overhead and maximizing throughput in dense server deployments.

Features

This plug-in PCIe 2.1 x8 card supports both full-height and low-profile brackets, enabling flexible installation across ProLiant Gen8/Gen9 servers. It utilizes standard UTP cabling to deliver 10 GbE over distances up to 100 m using Cat 6A or enhanced performance with Cat 6. With support for advanced acceleration technologies such as MSI‑X, TCP/UDP checksum offloads, TSO/LSO, RSS, SR‑IOV, and VMDq, it’s optimized for virtualized workloads and network teaming. Additional features include jumbo frames up to 9 K MTU, NIC teaming, and energy-efficient operation leveraging HPE Sea of Sensors thermal monitoring. This makes it well suited for scalable data center and enterprise use.

Advanced Options

Designed for dependable 10 GbE networking, this adapter delivers low latency and full-duplex throughput on both ports concurrently (~40 Gb/s aggregate bandwidth) with excellent packet efficiency. Hardware features like RSS, MSI‑X,

Product Key Features

  •  Two 10 GbE RJ‑45 ports over Cat 6A cabling

  •  Intel X540 controller with PCIe 2.1 x8 interface

  • Supports jumbo frames, PXE boot, Wake-on‑LAN

  •  Advanced offloads: TSO/LSO, checksum, RSS, MSI‑X

  •  Virtualization ready: VMDq, SR‑IOV support

  •  Low-power design with Sea of Sensors thermal support

Reliability & Performance

 and offloading minimize CPU involvement and enhance scalability under heavy workloads. The Intel X540 chipset combined with HPE thermal management ensures stable behavior even in crowded rack scenarios. Certified for use in a broad range of HPE ProLiant Gen8/Gen9 servers—including DL, ML, and Apollo systems—it ensures plug-and-play interoperability and sustained performance.

Key Features :

  • 2 × 10 GbE RJ‑45 ports

  • Intel X540 controller (PCIe 2.1 x8 interface)

  • Supports jumbo frames up to 9 K MTU

  • Hardware offloads: TSO, LSO, TCP/UDP checksum, RSS

  • Virtualization support: SR‑IOV and VMDq

  • MSI‑X interrupt support for efficient CPU usage

  • Teaming support and PXE/WOL functionality

  • Low-profile and full-height bracket included

  • Compatible with Cat 6A or better cabling up to 100 m

  • HPE Sea of Sensors thermal optimization

SpecificationDetails
Model Number 716591‑B21
Product Type Dual-Port 10 GbE Network Adapter
Controller Intel X540
Bus Interface PCIe 2.1 x8
Ports 2 × 10 GbE RJ‑45
Data Rate 10 Gb/s per port, ~40 Gb/s aggregate
Cabling Cat 6A or better UTP (up to 100 m reach)
Offload Features TSO, LSO, TCP/UDP checksum, RSS, MSI‑X
Virtualization Features SR‑IOV, VMDq
Jumbo Frame Support Up to 9 000‑byte MTU
Boot & Wake Features PXE, Wake-on‑LAN
Power Consumption ~19 W maximum
Form Factor Standard and low-profile bracket included
Supported Servers HPE ProLiant Gen8/Gen9 (DL, ML, SL, Apollo)
Operating Temp/Humidity 0 °C to 55 °C; 5–95 % non‑condensing
Standards Compliance IEEE 802.3an, 802.1Q, 802.3ad, 802.1az, RoHS

  • All packages are shipped same day if the order is placed before 3PM CST

    We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx

    Overnight Shipping take 1 business day
    Expedited Shipping take about 2-3 business days
    Ground shipping take about 3-5 business days

    You can select the desired service level at Checkout and we will make sure the package is shipped as per the selected service level.

  • We Accept

    i) PayPal
    ii) All Credit & Debit Cards
    iii) Purchase Orders
    iv) Check
    v) Bank Transfer/ACH/Wire Transfer

    To process the order through Paypal/CC, you can simply checkout and process the payment.

    If you want to issue us Purchase Order/Check/Bank Transfer, Please contact us at the following details

    Call: 469.458.9636
    Email: sales@dcsupplies.net

  • If you have any queries, please contact us at the following details and we will be happy to help

    Call
    469.458.9636
    469.458.9638

    Email
    sales@dcsupplies.net

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