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HP 727054-B21 Ethernet 10Gb 2-Port Adapter

★★★★★4.5 (3 reviews)

Two SFP+ ports at 10GbE over a PCIe 3.0 x8 interface — the adapter that eliminates the bandwidth bottleneck between your server and the rest of your network.

$23.38*$27.50Save 14%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The HP 727054-B21 delivers dual-port 10 Gigabit Ethernet connectivity over a PCIe 3.0 x8 interface — the standard specification for production server networking in enterprise and data center environments. At 10GbE per port, this adapter moves 10x the bandwidth of gigabit infrastructure, which translates directly to reduced backup windows, faster NFS and iSCSI storage throughput, and the ability to consolidate multiple 1GbE ports into a single high-bandwidth connection. The PCIe 3.0 x8 host interface provides approximately 64 Gbps of theoretical bandwidth — a bus that will not constrain either port under full simultaneous load. The SFP+ cage design is the professional choice for structured data center cabling: transceiver-based connectivity means you match the optical or copper medium to the run length and infrastructure rather than being locked into a single cable type.

This adapter is built for HPE ProLiant server environments — virtualization hosts, database servers, and NAS appliances where 1GbE has become the bottleneck and a single additional PCIe slot investment can meaningfully change I/O headroom. The dual-port design specifically enables the two most common 10GbE deployment patterns: NIC teaming for redundancy and aggregated bandwidth to a single upstream switch, or dual-segment connectivity where the server needs simultaneous presence on separate networks — storage and production, or management and data plane. The HPE OEM designation means iLO integration and ProLiant Driver Kit support work as expected in certified configurations. Administrators deploying this card in non-HPE environments should verify driver availability and expect to forgo HPE-specific management integration.

Key Features

Hp Ethernet 10gb 2-port 562flr-sfp+ Adapter - Pci Express 3.0 X8 - 2 Port(s) - Optical Fiber

Specifications

Brand
HP / HPE
Model
727054-B21
Interface
PCI Express 3.0 x8
Ports
2
Port Type
SFP+
Speed per Port
10 Gbps
Media Type
Optical Fiber (SFP+ transceiver-based)
Aggregate Throughput
20 Gbps (dual port)

Pros & Cons

👍 Pros

  • Dual 10GbE ports over a PCIe 3.0 x8 interface deliver up to 20Gbps aggregate throughput — adequate for NIC teaming, multi-segment connectivity, or high-bandwidth storage fabric access.
  • SFP+ cage design supports a wide range of transceiver types — SR, LR, and DAC — giving flexibility for both short-haul data center runs and longer inter-rack fiber connections.
  • PCIe 3.0 x8 interface provides ~64 Gbps of theoretical bus bandwidth, ensuring the host interface never bottlenecks the 10GbE ports under simultaneous load.
  • As an HPE OEM part (727054-B21), it integrates cleanly into ProLiant server management environments including iLO health monitoring.

👎 Cons

  • SFP+ interface requires purchasing compatible transceivers or DAC cables separately — there is no integrated copper RJ45 option for standard Cat6 infrastructure.
  • HPE OEM firmware dependency means the adapter may generate health warnings or have reduced functionality in non-HPE server environments — it is not a generic multi-platform NIC.
  • No onboard hardware offload specifications are published in the available listing data — TCP offload engine (TOE) and RDMA capability cannot be confirmed without HPE technical documentation.
  • The FLR (Flexible LOM Riser) form factor designation in the model name suggests this may be a FlexibleLOM mezzanine card rather than a standard PCIe half-height add-in card — verify physical form factor compatibility with your server chassis before ordering.

Frequently Asked Questions

It requires a PCIe 3.0 x8 slot and is physically compatible with larger x16 slots — PCIe is backward and forward compatible by slot size. However, for rated 10GbE throughput on both ports simultaneously, the x8 interface provides sufficient bandwidth; an x4 or x1 slot would bottleneck the adapter.
The 727054-B21 uses SFP+ cage interfaces — it does not have built-in RJ45 ports. Connectivity depends on SFP+ transceivers: 10GBASE-SR for multimode fiber, 10GBASE-LR for single-mode fiber, or Direct Attach Copper (DAC) cables for short rack-to-rack runs. Transceivers are not included.
The 727054-B21 is an HPE OEM card, meaning HPE servers may display health warnings in iLO if non-certified adapters are used. Conversely, this card is optimized for HPE ProLiant environments and may have limited driver support or feature access in non-HPE server platforms. Verify compatibility before deployment in third-party hardware.
Each port operates at 10Gbps full-duplex, delivering up to 20Gbps aggregate bidirectional throughput across both ports. The PCIe 3.0 x8 interface provides approximately 64 Gbps of theoretical bandwidth — well above what the dual 10GbE ports require, meaning PCIe is not the limiting factor.
The second port enables either NIC teaming (bonding both ports for up to 20Gbps to a single destination with failover) or connecting the server to two separate network segments simultaneously — production and management, or storage fabric and client network. For database servers, NAS appliances, or virtualization hosts with multiple VLANs, dual-port cards eliminate the need for a second adapter.

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