HP 716591-B21 10Gb 2-Port 561T Network Adapter –

The HP 716591-B21 Ethernet 10Gb 2-Port 561T Network Adapter is a high-performance PCIe network card designed to provide reliable 10 Gigabit Ethernet connectivity for HPE ProLiant, Apollo, ML, SL, and XL servers. Featuring dual RJ-45 10Gb ports, it supports jumbo frames, teaming, and advanced offload capabilities to optimize server networking and improve data center efficiency.

Fully tested and supplied as an open-box unit, this network adapter is in excellent condition and ready for immediate deployment. Its plug-in form factor ensures easy installation in compatible HPE servers, delivering scalable, high-speed connectivity for enterprise workloads, virtualization, and cloud applications.

Key Features & Benefits
2 × 10Gb Ethernet RJ-45 ports
PCI Express 2.1 x8 form factor for high-speed server connectivity
Supports jumbo frames, teaming, PXE, LSO, RSS, and TSO
SNMP support for remote management and monitoring
Fully tested open-box unit for reliable enterprise performance

Ideal Uses
High-speed networking for HPE ProLiant and Apollo servers
Enterprise and data center server connectivity
Virtualized server environments
High-bandwidth applications requiring 10Gb Ethernet performance

Specifications
Condition: Device in excellent, fully tested, and 100% functional condition. Packaging may be opened or slightly marked.
Brand / Model: HPE 716591-B21
Product Type: Network Adapter / 10Gb Ethernet Card
Interface Type: PCI Express 2.1 x8
Ports: 2 × 10Gb Ethernet RJ-45
Networking Standards: IEEE 802.3, 802.3x, 802.3ad (LACP), 802.1AX, 802.1Qbb, 802.1Qaz, 802.1Qau
Features: Jumbo Frames, Teaming, PXE, LSO, RSS, TSO
Processor: 1 × Intel x540
Dimensions (W × D × H): 9.5 × 7.5 × 2.25 in
Weight: 1 lb
Operating Temperature: 055 °C
Operating Humidity: 595% non-condensing
Compatible Servers: HPE Apollo, ProLiant DL, ML, SL, XL Series, StoreEasy 3850 Gateway Single Node

Warranty
3 Month Warranty

What's in the Box
HP 716591-B21 10Gb 2-Port 561T Network Adapter