How many Ethernet ports does the HPE P51182-B21 provide?

The adapter offers four Ethernet ports, as indicated by its description as a 4-port 1GbE RJ-45 server network adapter. These four ports enable a single server to connect to multiple network segments, redundant switches, or separate traffic zones using one physical network card.

What connector type is used on the HPE P51182-B21 adapter?

The adapter is described as a 4-port 1GbE RJ-45 server network adapter, indicating that its ports use RJ-45 connectors. This allows it to connect using standard copper Ethernet cabling found in many enterprise and data center environments that rely on 1Gb Ethernet.

Which interface does the HPE P51182-B21 use to connect to the server?

The P51182-B21 is categorized as a PCIe Gigabit Ethernet Adapter, which means it uses a PCI Express interface to connect to the host server. This ensures compatibility with standard PCIe expansion slots typically available in modern server platforms.

What type of product is the HPE P51182-B21 in a networking context?

In networking terms, the HPE P51182-B21 is a 4-port 1GbE RJ-45 server network adapter in the PCIe Gigabit Ethernet Adapter category. It is intended to provide four 1Gb Ethernet ports for server connectivity, using a PCI Express interface and RJ-45 copper Ethernet connections.

P51182-B21 - HPE P51182-B21 1Gb 4-port Ethernet network adapter

Name: HPE P51182-B21 1Gb 4-port Ethernet network adapter
Brand: HPE
SKU: P51182-B21
Price: 258 USD
Availability: InStock

P51182-B21 - HPE P51182-B21 1Gb 4-port Ethernet network adapter | US IT Hardware

Product overview

The HPE P51182-B21 Broadcom 1Gb 4-port Ethernet Adapter is designed to provide four 1Gb Ethernet ports for server networking environments. As a 4-port 1GbE RJ-45 server network adapter, it supports Gigabit Ethernet connectivity over standard copper cabling. This adapter is suitable for deployments that require multiple 1Gb links from a single network interface, enabling more flexible network layouts in rack and data center servers. Belonging to the PCIe Gigabit Ethernet Adapter category, it is aimed at IT infrastructures that standardize on 1Gb connectivity and need additional port density in a compact form factor. By integrating four Ethernet ports into one adapter, it helps streamline slot usage and simplifies cabling for systems that must connect to multiple network segments or redundant switches. This makes the P51182-B21 a practical choice for organizations expanding 1Gb server network capacity.

HPE Broadcom 1Gb 4-port Ethernet adapter
Four 1GbE ports on a single network card
PCIe Gigabit Ethernet adapter form factor
RJ-45 interfaces for copper Ethernet cabling
Designed for server network connectivity
Model identifier P51182-B21 for easy sourcing

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
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 #	P51182-B21
Brand	HPE
Condition	New
Model	P51182-B21 Broadcom BCM5719 Ethernet 1GB 4-Port Base-T Adapter
Series	Broadcom BCM5719 Ethernet 1Gb 4-port OCP3 adapter for HPE ProLiant
Chipset	Broadcom BCM5719
Bus Type	OCP 3.0
Technology	Broadcom BCM5719 controller
Form Factor	Plug-in card
PXE Support	Preboot eXecution Environment (PXE) support
Bus Standard	OCP 3.0 interface to host system

Best for

Server networking
Suitable for server environments that require a 1Gb 4-port Ethernet adapter to provide multiple network connections from a single card.
1GbE consolidation
Useful where four 1Gb Ethernet connections are needed on one adapter, helping consolidate multiple single-port network links into a single 4-port 1GbE solution.
Multiport RJ-45 connectivity
Ideal for infrastructures that rely on RJ-45 copper cabling and need a 4-port 1GbE RJ-45 server network adapter.
PCIe Gigabit Ethernet deployments
Fits deployments that use PCIe Gigabit Ethernet adapters and require four 1Gb ports on one network card for flexible connectivity.
Segmented network links
Applicable where servers must connect to multiple network segments using a 4-port 1Gb Ethernet adapter with RJ-45 interfaces.

Frequently asked questions

What is the network speed supported by the HPE P51182-B21 adapter?

Details

Shipping, warranty & returns

Customer reviews

No reviews yet — be the first to review this part.

Flow Control	IEEE 802.3x flow control

Product Line	HPE Ethernet Adapters

Product Type	Gigabit Ethernet adapter

VLAN Tagging	IEEE 802.1Q VLAN tagging

Maximum Power	4.3 W

Typical Power	1.0 W

Checksum Offload	TCP, UDP, and IP checksum offload

Link Aggregation	IEEE 802.3ad link aggregation (LACP)

Supported Cables	Category 6A (Cat6A) twisted pair copper

Large Send Offload	TCP segmentation offload (TSO)

Data Link Protocols	Ethernet; Fast Ethernet; Gigabit Ethernet

Full Duplex Support	Full-duplex operation on all ports

Jumbo Frame Support	Supports jumbo frames (9K bytes)

Receive Side Scaling	RSS for load balancing of receive traffic

Connectivity Technology	Wired

Virtualization Features	Support for virtual machine queues and virtualization-optimized I/O

Auto-Negotiation Support	Auto-negotiation for 10, 100, and 1000 Mb/s

Intended Server Platform	HPE ProLiant Gen10 Plus servers supporting OCP3

Maximum Data Transfer Speed	128 Mb/s

Compatible Operating Systems	Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Oracle Solaris, VMware ESX and ESXi, Microsoft Windows Hyper-V

Aggregate Bandwidth	4 GbE total across 4 ports

Maximum Power Consumption	4.3 watts (maximum)
Typical Power Consumption	1.0 watts (typical)

Networking Ports & Interfaces

Ports	4 Gigabit Ethernet RJ-45 ports
Interface	OCP 3.0 mezzanine
Connector Type	Base-T RJ-45
Network Processor	Broadcom BCM5719 controller
Data Rate per Port	1 GbE per port
Number of Ethernet Ports	4 x RJ-45
Energy Efficient Ethernet	IEEE 802.3az
Ethernet Interface Standard	10/100/1000BASE-T
Network Protocols Supported	IPv4, IPv6, TCP, UDP, iSCSI and related Ethernet protocols
Precision Time Protocol Support	IEEE 1588 and 802.1AS time synchronization

HPE P51182-B21 1Gb 4-port Ethernet network adapter