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Deal.ai › Network Cards
190017576107
HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter
190017576107

HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter

Best price now

$89.99at NeweggChecked 54 min ago

28% under what the other stores charge

Compared across 16 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $89.99 at Newegg (checked Nov 11, 2026).
  • Checked at 16 stores.

Our take on the HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter

This is a four-port Gigabit Ethernet server adapter built on Broadcom's BCM5719 controller and a PCIe 2.0 x4 host interface. It gives a server four independent 1GbE copper ports on one card, which suits virtualization hosts, firewall and router builds, and machines that need several network segments without filling every slot. It is a plain BASE-T card: no 2.4 GHz or 5 GHz wireless, no 10GbE, no SFP cages. Compared with single-port and dual-port 1GbE cards it trades slot space for port count; compared with 10GbE adapters it offers far less bandwidth but broader switch compatibility and simpler cabling. It is a server part, so buyers should confirm it fits their HPE ProLiant generation and that the OS has BCM5719 drivers.

Best forVirtualization hosts needing several network segmentsFirewall, router and pfSense-style buildsServers with spare PCIe slots but limited switch portsAdding redundant 1GbE links without 10GbE switches
Pros
  • Four independent 1GbE ports on a single card
  • Broadcom BCM5719 controller with mature driver support
  • PCIe 2.0 x4 interface fits most server slots
  • Copper BASE-T ports work with ordinary Cat5e/Cat6 cabling
  • RoHS compliant server-grade part
Cons
  • Only 1GbE per port; no 10GbE or 2.5GbE option
  • PCIe 2.0 generation, not the newer PCIe 3.0/4.0 standard
  • Needs a free x4 (or larger) slot and server airflow
  • HPE-specific part number limits use outside supported ProLiant models
  • No wireless capability at all

HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter prices at every store

  • NeweggNew

    In stock

    $89.99Free shippingChecked 54 min ago
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  • Grooves-Inc.comNew

    In stockShips from abroad · duties may apply

    $111.67Checked 54 min ago
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  • ConnectionNew

    In stock

    $115.48Free shippingChecked 54 min ago
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  • Best BuyNew

    In stock

    $116.91Free shippingChecked 54 min ago
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  • Hummingbird NetworksNew

    In stock

    $121.25Free shippingChecked 54 min ago
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  • WalmartNew

    In stockSold by UnbeatableSale

    $114.33+ $8.00 shippingChecked 54 min ago
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  • HPENew

    In stock

    $107.69+ $17.00 shippingChecked 54 min ago
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  • ServerSupply.comNew

    In stock

    $130.00Free shippingChecked 54 min ago
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    $105.00+ $36.00 shippingChecked 54 min ago
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    $326.39Free shippingChecked 54 min ago
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  • Global One TechnologyNew

    In stockSold by HPE Server Parts

    $495.00Free shippingChecked 54 min ago
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  • GotodirectNew

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  • AmazonNew

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    $124.57Free shippingChecked 54 min ago
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Store links may earn us a commission. Some prices via Klarna.

HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter price history

Lowest price we've seen: $89.99 on Nov 11 at Newegg. Tracked across 15 stores since Nov 11.

What reviewers say

Owner feedback on BCM5719-based four-port cards is generally positive: they are seen as reliable workhorses for virtualization and routing, with drivers available in mainstream server operating systems. Complaints center on the 1GbE ceiling and on compatibility and firmware quirks in non-HPE systems.

What people mention
  • ThroughputCriticisedOwners note that 1GbE per port is modest for storage and backbone traffic in newer networks.
  • ReliabilityPraisedUsers report the card stays stable under sustained load in hypervisors and router builds.
  • DriversMixedMainstream server operating systems support it, but some users hit firmware or driver quirks outside HPE hardware.
  • Port densityPraisedFour ports on one card are valued for saving PCIe slots in dense server builds.
  • HeatCriticisedThe card runs warm and reviewers say it needs adequate chassis airflow.

About the HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter

The HP P51178-B21 is a 4-port Gigabit Ethernet adapter for servers. It is built around the Broadcom BCM5719 controller and uses 1000Base-T connections at up to 1 Gbit/s per port.

The adapter connects to the server through a PCI Express 2.0 x4 interface. It is RoHS compliant.

Model
P51178-B21
Controller
Broadcom BCM5719
Ports
4 x 1000Base-T (BASE-T)
Speed
1 Gbit/s
Interface
PCIe 2.0 x4
Compliance
RoHS
Intended use
Servers
Wireless
No 2.4 GHz or 5 GHz

Specifications

2.4 GHz
NoSource
5 GHz
NoSource
Interface
PCIe x4Source

Questions and answers

Is this card 10GbE?
No. Each of the four ports is 1GbE over copper BASE-T. For 10GbE you need a different adapter and typically SFP+ or 10GBASE-T infrastructure.
Which slot does it need?
A PCIe 2.0 x4 slot or larger. It will physically fit x8 and x16 slots, but it will not exceed its x4 link bandwidth.
Does it work in non-HP servers?
The BCM5719 controller is widely supported, so it often works in other systems, but the HPE part number and firmware mean support is aimed at HPE ProLiant servers. Check your model's compatibility list first.
Does it support wireless?
No. It is a wired Ethernet adapter only, with no 2.4 GHz or 5 GHz radio.
What cabling do the ports use?
Standard copper Ethernet: Cat5e or Cat6 with RJ45 connectors, at 1Gbps per port.
Is it worth it over a dual-port card?
If you need more than two network segments or redundant links and have a free slot, the four-port layout is more efficient. If you only need two links or want higher speed, a dual-port or 10GbE card makes more sense.
Where is the HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter cheapest?
At Newegg, for $89.99, 28% under what the other stores charge, as of our latest check.
Where can I buy the HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter?
16 stores we checked sell it, including Newegg, Antonline, Gotodirect, Amazon, eBay.

Stores we've priced the HP P51178-B21 Broadcom BCM5719 Ethernet 1Gb 4-port BASE-T Adapter at

  • Best Buy deals and prices
  • Connection deals and prices
  • Newegg deals and prices
  • Walmart deals and prices